#class 7 science

[sarthaks24]

Why NCERT Solutions for Class 7 are Important for Learning

Hello everyone! I’ve got some exciting news to share! Sarthaks eConnect is offering free NCERT solutions for Class 7 in every subject! We’re committed to providing quality education to everyone without any cost. Each solution is crafted to cover every chapter and topic thoroughly and clearly, ensuring you have the guidance you need to succeed. We’re proud to be one of India’s leading and trusted eLearning platforms, and we’re here to support you every step of the way.

Math Made Easy!

If math feels tricky, don’t worry – you’re in the right place! Our Class 7 Maths NCERT Solution is here to help you with all your questions. From integers to data handling, and from lines and angles to symmetry, we’ve got every topic covered. Our solutions are made by the best teachers to ensure you get clear, simple answers. Just open your mind and follow along – math will feel easy before you know it!

Science Unlocked

Why struggle with science when we’re here to help? Our Class 7 Science NCERT Solutions cover everything from nutrition in plants and animals to more complex topics like acids, bases, and salts, as well as concepts of time and motion. We’ll make sure all your doubts are cleared up, guiding you through every lesson.

History, Geography, and Civics Simplified

Do subjects like history, geography, and civics leave you scratching your head? Don’t worry! With our NCERT Solutions for Class 7 Social Science, you’ll easily understand everything from the Delhi Sultanate and Mughal periods in history, to the inner layers of Earth, air, and water in geography. Our civics resources will help you grasp the essentials of media, rights, duties, and how our courts work. With Sarthaks eConnect, mastering Social Science has never been easier.

English and Hindi – Score Big in Language Papers

Let’s talk about English! With NCERT Solutions for Class 7 English, you’ll be prepared to tackle all the chapters in Honeycomb, both prose and poetry. Even if you’re good at writing answers, quality content makes a difference. Our solutions will help you truly understand each story and poem, so you can write answers that stand out.

Hindi may seem simple, but it has many layers. Our Class 7 Hindi NCERT Solution includes thorough guides for Vasant, Durva, and Bal Mahabharat Katha. Hindi stories and poems often have more than one meaning, and we’ll help you understand what the writers and poets are really saying, so you can answer with confidence.

Get Started Today!

All the links you need are available. Click on them, dive into the solutions, and begin your learning journey with Sarthaks eConnect. With us, you’ll have the guidance and resources you need to excel in every subject of Class 7. Let’s make this academic year a successful one – together!

[spidermansballs]

ok so yk how felicias hair is purple and vi and jinxs hair is pink and blue, and their father seems to have brown hair. well colored hair seems to be one of the dominant traits of their haircolor pool, and as all haircolor is, this is a polygenic gene pool. now felicia seems to have a codominant gene with one allele for pink and one allele for blue, like this:

like a wildflower.

this:

would be the chart for vi and jinx's genes, PB being felicia (pink and blue) and BrBr being their father (brown, which is still a dominant trait, but yields to these other colors). when you chart it the genes exhibit that pink is dominant over brown and blue is dominant over brown, (and it doesnt matter what the fathers genes were, as in if he was carrying a recessive gene, it would still get overpowered by pink/blue)

there was always a 50% chance their child would have blue hair and a 50% chance their child would have pink hair

so clearly felicia has dominant traits, as hers are easily seen within both her daughters, although we dont see much of their father (like one drawing) and their physical appearances are very influenced by their environments (as we see in the happy au, with powder's skin being much healthier and not as sickly as jinx's)

this is also shown in the kirammans as caitlyn and her father both have dark blue hair and her mother has brown, greying hair, blue is either dominant or her mother carries a recessive blue allele.

i would be able to provide more examples but we dont see many peoples parents in this show. it is curious how "colored" hair (at least pink and blue) must be dominant even though there are less people with these traits, like straight hair vs curly hair, curly is dominant but not as common.

honestly the arcane genes are extremely fascinating and if i knew more that would be fabulous

[mae-the-gay-nerd]

FUCK PALM OIL PRESENTATIONS, AERITH’S HOUSE BITCHES

[zukkaoru]

ohhh you guys are reading bsd without suspending your disbelief. you guys are expecting to get a clear cut perfectly understandable scientific explanation for something that can't actually happen in the real world, and then you're upset when you don't get it. you're forgetting that bsd has always had fantastical elements in it and it is not meant to be a 1:1 replication of Our World. you don't have to know and understand every single scientific concept being talked about in the recent chapters; you just have to be able to get the general idea and realize that this isn't the real world, so it won't make sense by the standards of our reality. then maybe you can stop whining about how nonsensical all the dialogue is and start appreciating the story itself

[realbeefman]

reading actual medical case reports bc of house and realizing that perhaps cheating through every single science class i ever took is having unforseen consequences (cant understand yaoi subtext as deeply as i could)

[alaskan-wallflower]

can my history teacher please shut the fuck up i get it’s a college class!! i get that! you don’t need to keep telling me i’m gonna fail!!

[manishroom]

well. "make wordsearch puzzles of minecraft youtube characters"

[randomuniversityquotes]

Physics TA: “Brain is off right now.”

[phantom-brainrot]

"On a scale to 5 to a negative 5, how are you?"

"Ma'am, it's the first day of schoo-"

we usually think of mood as a scale from 1-5, but there's actually a negative scale too, where the frown turns back into a smile, but just a little insane !

[tutoraunsw]

What to Expect from Quality Regular HSC Tuition Classes

When it comes to preparing for the Higher School Certificate (HSC), students often benefit from additional academic support outside of school hours. Regular HSC tuition classes are designed to provide structured learning, personalised attention, and a deeper understanding of complex subject material. These classes typically follow the curriculum closely while also focusing on exam strategies, time management, and individual strengths and weaknesses. Students can expect smaller class sizes, consistent schedules, and tutors who are well-versed in HSC requirements and assessment styles.

For students studying subjects like Physics, Chemistry, or Biology, having access to experienced science tutors makes a noticeable difference. These tutors help simplify difficult concepts, provide practical applications, and run mock tests that simulate real exam conditions. A quality tutor doesn't just explain the subject—they build confidence, reinforce theory with practice, and encourage analytical thinking. In a good tuition setting, science sessions are often interactive, using visual aids and problem-solving exercises that align with schoolwork while preparing students for exam performance.

While most parents look for tutoring during the final years of high school, it's also worth considering academic support earlier. Year 7 tutoring lays the groundwork for a student's long-term success. These sessions often focus on strengthening foundational skills in English, Maths, and Science, helping students adjust from primary to secondary schooling. Early tutoring also identifies learning gaps before they widen and encourages positive study habits from a young age. Starting early can give students a smoother academic journey, making later HSC preparation more manageable and less stressful.

Starting early also sets a strong academic foundation. Year 7 tutoring is often overlooked, but it plays a key role in long-term success.

Here’s how it helps:

Builds core skills in English, Maths, and Science.

Encourages a positive study routine from a young age.

Helps students transition smoothly from primary to high school.

Identifies learning gaps early and corrects them before they widen.

Ultimately, quality tuition is not just about grades—it’s about creating an environment where students can thrive. Whether you're investing in regular HSC tuition classes, seeking expert science tutors, or beginning with year 7 tutoring, the goal remains the same: to support students in reaching their full academic potential.

Source: https://tutoring-centres-sydney.blogspot.com/2025/05/what-to-expect-from-quality-regular-hsc.html

[superchemistryclasses]

Understanding Matter: The Distinctive Nature of Elements, Compounds, and Mixtures

Introduction to the Building Blocks of Our Universe Our physical world is composed of various forms of matter, which scientists classify into three primary categories: elements, compounds, and mixtures. These classifications help us understand how substances interact, combine, and can be separated. For students in Class 7, grasping these concepts is crucial as they form the foundation of…

[kitchensinksurrealism]

heard a song that reminded me of a video i watched when i was 12 and then that reminded me of being 12 which reminded me of being 13 and then i listened to music i liked when i was 13 which reminded me of one of the biggest things that happened to me when i was 13 which was that i was in love with marvin the martian and tbh 12 years later not much has changed

[jcmarchi]

“Forever grateful for MIT Open Learning for making knowledge accessible and fostering a network of curious minds”

New Post has been published on https://thedigitalinsider.com/forever-grateful-for-mit-open-learning-for-making-knowledge-accessible-and-fostering-a-network-of-curious-minds/

“Forever grateful for MIT Open Learning for making knowledge accessible and fostering a network of curious minds”

Bia Adams, a London-based neuropsychologist, former professional ballet dancer, and MIT Open Learning learner, has built her career across decades of diverse, interconnected experiences and an emphasis on lifelong learning. She earned her bachelor’s degree in clinical and behavioral psychology, and then worked as a psychologist and therapist for several years before taking a sabbatical in her late 20s to study at the London Contemporary Dance School and The Royal Ballet — fulfilling a long-time dream.

“In hindsight, I think what drew me most to ballet was not so much the form itself,” says Adams, “but more of a subconscious desire to make sense of my body moving through space and time, my emotions and motivations — all within a discipline that is rigorous, meticulous, and routine-based. It’s an endeavor to make sense of the world and myself.”

After acquiring some dance-related injuries, Adams returned to psychology. She completed an online certificate program specializing in medical neuroscience via Duke University, focusing on how pathology arises out of the way the brain computes information and generates behavior.

In addition to her clinical practice, she has also worked at a data science and AI consultancy for neural network research.

In 2022, in search of new things to learn and apply to both her work and personal life, Adams discovered MIT OpenCourseWare within MIT Open Learning. She was drawn to class 8.04 (Quantum Physics I), which specifically focuses on quantum mechanics, as she was hoping to finally gain some understanding of complex topics that she had tried to teach herself in the past with limited success. She credits the course’s lectures, taught by Allan Adams (physicist and principal investigator of the MIT Future Ocean Lab), with finally making these challenging topics approachable.

“I still talk to my friends at length about exciting moments in these lectures,” says Adams. “After the first class, I was hooked.”

Adams’s journey through MIT Open Learning’s educational resources quickly led to a deeper interest in computational neuroscience. She learned how to use tools from mathematics and computer science to better understand the brain, nervous system, and behavior.

She says she gained many new insights from class 6.034 (Artificial Intelligence), particularly in watching the late Professor Patrick Winston’s lectures. She appreciated learning more about the cognitive psychology aspect of AI, including how pioneers in the field looked at how the brain processes information and aimed to build programs that could solve problems. She further enhanced her understanding of AI with the Minds and Machines course on MITx Online, part of Open Learning.

Adams is now in the process of completing Introduction to Computer Science and Programming Using Python, taught by John Guttag; Eric Grimson, former interim vice president for Open Learning; and Ana Bell.

“I am multilingual, and I think the way my brain processes code is similar to the way computers code,” says Adams. “I find learning to code similar to learning a foreign language: both exhilarating and intimidating. Learning the rules, deciphering the syntax, and building my own world through code is one of the most fascinating challenges of my life.”

Adams is also pursuing a master’s degree at Duke and the University College of London, focusing on the neurobiology of sleep and looking particularly at how the biochemistry of the brain can affect this critical function. As a complement to this research, she is currently exploring class 9.40 (Introduction to Neural Computation), taught by Michale Fee and Daniel Zysman, which introduces quantitative approaches to understanding brain and cognitive functions and neurons and covers foundational quantitative tools of data analysis in neuroscience.

In addition to the courses related more directly to her field, MIT Open Learning also provided Adams an opportunity to explore other academic areas. She delved into philosophy for the first time, taking Paradox and Infinity, taught by Professor Agustín Rayo, the Kenan Sahin Dean of the MIT School of Humanities, Arts, and Social Sciences, and Digital Learning Lab Fellow David Balcarras, which looks at the intersection of philosophy and mathematics. She also was able to explore in more depth immunology, which had always been of great interest to her, through Professor Adam Martin’s lectures on this topic in class 7.016 (Introductory Biology).

“I am forever grateful for MIT Open Learning,” says Adams, “for making knowledge accessible and fostering a network of curious minds, all striving to share, expand, and apply this knowledge for the greater good.”

[studiestoday123]

Explore NCERT Exemplar Solutions for Class 8 Maths - Comparing Quantities by StudiesToday. Enhance your understanding of key concepts with comprehensive, well-explained answers, tailored to boost your academic performance and problem-solving skills in mathematics.

[w0nderland]

the weekend in [redacted] was so fun i can't wait to move there. also how do you make friends in a new place

[thestudy24x7]

What is the difference between heat and temperature class 7

Understanding the Difference Between Heat and Temperature

For Class 7 students, understanding the concepts of heat and temperature is essential as these are fundamental topics in physics that explain how energy is transferred and how we measure it. Despite their close relationship, heat and temperature are distinct concepts. This article will delve into their definitions, differences, and how they relate to each other in the context of everyday life and scientific principles.

What is Heat?

Heat is a form of energy known as thermal energy. It is the energy that is transferred between systems or objects with different temperatures. Heat flows from the hotter object to the cooler one until thermal equilibrium is reached, meaning both objects attain the same temperature.

Key Points About Heat:

Energy Transfer: Heat is the transfer of thermal energy from a warmer object to a cooler one.

Units: Heat is measured in joules (J), calories (cal), or British Thermal Units (BTU). The joule is the standard unit in the International System of Units (SI).

Forms of Transfer: Heat can be transferred in three ways – conduction (direct contact), convection (fluid movement), and radiation (electromagnetic waves).

What is Temperature?

Temperature is a measure of the average kinetic energy of the particles in a substance. It indicates how hot or cold an object is but does not measure heat directly. Temperature tells us the intensity of heat present in the substance.

Key Points About Temperature:

Measure of Kinetic Energy: Temperature measures the average kinetic energy of particles in a material.

Units: Temperature is measured in degrees Celsius (°C), Fahrenheit (°F), or Kelvin (K). The Kelvin scale is the standard in scientific contexts.

Thermometers: Temperature is measured using thermometers, which can be liquid-in-glass (like mercury or alcohol thermometers), digital, or infrared.

Differences Between Heat and Temperature

Understanding the differences between heat and temperature is crucial for grasping basic principles of thermodynamics and everyday phenomena.

Nature:

Heat: Heat is a form of energy.

Temperature: Temperature is a measure of the intensity of heat.

Measurement:

Heat: Measured in joules (J), calories (cal), or BTU.

Temperature: Measured in degrees Celsius (°C), Fahrenheit (°F), or Kelvin (K).

Concept:

Heat: Refers to the total energy of molecular motion in a substance.

Temperature: Refers to the average energy of molecular motion in a substance.

Instrument:

Heat: Measured using calorimeters.

Temperature: Measured using thermometers.

Transfer:

Heat: Can flow from one body to another.

Temperature: Is an indicator and does not flow.

Practical Examples and Applications

To better understand the concepts of heat and temperature, let's consider some everyday examples:

Boiling Water:

When you heat water on a stove, the stove provides heat (thermal energy) to the water. As the water absorbs this heat, its temperature rises. Once it reaches 100°C (at standard atmospheric pressure), it begins to boil. Here, the heat energy causes the water molecules to move faster, increasing their kinetic energy and, consequently, the temperature.

Heat Transfer in a Metal Rod:

If you hold one end of a metal rod in a flame, heat travels along the rod through conduction. The end in the flame gets hot first (higher temperature) as heat is transferred to it, and this energy moves along the rod, increasing the temperature of the entire rod over time.

Room Heating:

In winter, a heater transfers heat to the air in a room. The heater's temperature is higher than the room's air temperature, and heat flows from the heater to the air, increasing the room's temperature until equilibrium is achieved.

Thermodynamic Principles

The relationship between heat and temperature is governed by the principles of thermodynamics, particularly the first law (conservation of energy) and the second law (entropy). These laws describe how heat energy is conserved and how it naturally flows from hotter to cooler bodies, respectively.

First Law of Thermodynamics:

This law states that energy cannot be created or destroyed, only transferred or converted from one form to another. When you heat a substance, the energy you provide (heat) is converted into internal energy, raising the substance's temperature.

Second Law of Thermodynamics:

This law explains that heat flows spontaneously from a hot object to a cold one and not in the reverse direction unless external work is applied. This principle underlies many natural processes, such as the melting of ice in a warm room.

Experimental Activities

For a practical understanding of heat and temperature, students can perform simple experiments:

Mixing Water:

Mix hot and cold water and measure the final temperature. This experiment demonstrates heat transfer and equilibrium. The final temperature will be intermediate, depending on the masses and initial temperatures of the water samples mixed.

Heat Absorption:

Place different materials (metal, wood, plastic) in sunlight and measure their temperature at regular intervals. This activity shows how different materials absorb and retain heat differently, affecting their temperature rise.

Conduction Experiment:

Heat one end of a metal rod and feel the temperature change along its length. Use a thermometer to measure how quickly the heat spreads. This experiment illustrates heat conduction.

Conclusion

In summary, heat and temperature are fundamental concepts in science that describe how energy is transferred and measured. Heat is the thermal energy transferred between objects, while temperature measures the average kinetic energy of particles in a substance. Understanding these concepts is essential for studying thermodynamics and applying this knowledge to real-world situations. By exploring the differences between heat and temperature, students can appreciate the intricate ways energy interacts with matter in our everyday lives.