Category: Heat experiments for grade 8

A world of science opens up to students when they begin lab work. Getting their hands involved in the process engages their brains in different ways from a classroom lecture. Especially at the junior high age, when it may be their first time in a science lab, students get satisfaction from completing a tangible project while learning at the same time.

You can use extracted red cabbage juice as a natural pH indicator. At neutral pH pH 7the juice is blue-violet in color. When you add something acidic to the juice, such as vinegar, the cabbage juice turns red. When you add something alkaline, such as baking soda, the cabbage juice turns bluish-green. You can also create pH indicator paper by soaking filter paper or other porous paper in the cabbage juice, then allowing it to air dry.

heat experiments for grade 8

How does temperature affect a chemical reaction? Obtain two identical cups. Fill one with ice water, and fill the other with hot — but not boiling — water. Drop a seltzer tablet into each one simultaneously. Note how long it takes each tablet to dissolve. You can make a form of biodegradable plastic in the lab, or even in your own kitchen, starting with milk. Place 2 cups of milk in a heavy pot and heat almost to the boiling point, then add 4 teaspoons of vinegar.

Stir as curds begin to form. Drain the mixture over a colander and let the curds cool, and mold the curds into your desired shape. Compare this plastic with any plastic around your school or house — is yours harder, more pliable, different in color? In this experiment, you will test water for the presence of vitamin C both before and after having cooked carrots in it.

If a high concentration of vitamin C is present in the cooking water after the carrots have been cooked, you can assume that a lot of the nutrients have been lost in the cooking process. To test for the presence of vitamin C in the solution, you will use cornstarch and iodine. Combining cornstarch and iodine turns the water blue, but when you add vitamin C to this solution, the mixture becomes clear.

To perform the experiment, take a sample of the water before you cook your carrots and add it to a mixture of water, cornstarch, and iodine; this should stay blue. Cook your carrots until they are soft.

Then, take a sample of the cooking water, and add it to the same cornstarch-iodine solution. Does it stay blue, or does it turn clear? Brooke Yool just started writing in and has been writing for various websites since Yool is a Seattle-based certified Pilates and group fitness instructor. She is passionate about sharing her knowledge to improve the health of others. About the Author.

Photo Credits. Copyright Leaf Group Ltd.Science fair is an opportunity for students of all ages to ask big questions, conduct meaningful research, and make exciting discoveries. Browse hundreds of science fair project ideas to find the ideal project according to grade level. Preschool is not too early to introduce children to science! Most preschool science ideas aim to interest kids in exploring and asking questions about the world around them.

Students are introduced to the scientific method in grade school and learn how to propose a hypothesis. Grade school science projects tend to be quick to complete and should be fun for the student and the teacher or parent. Examples of suitable project ideas include:. Middle school is where kids can truly shine at the science fair!

Kids should try to come up with their own project ideas, based on topics that interest them. Parents and teachers may still need to help with posters and presentations, but middle school students should have control of the project. Examples of middle school science fair ideas include:. High school science fair projects can be about more than a grade. While it's fine for an elementary or middle school project to take hours or a weekend to complete, most high school projects run longer.

High school projects typically identify and solve problems, offer new models, or describe inventions. Here are some sample project ideas:. Just as a good high school idea can pave the way for cash and college education, a good college project can open the door to graduate school and gainful employment. A college project is a professional-level project that shows you understand how to apply the scientific method to model a phenomenon or answer a significant question.

The big focus on these projects is on originality, so while you might build on a project idea, don't just use one someone else has already done. It's fine to use an old project and come up with a new approach or different way of asking the question. Here are some starting points for your research:. This content is provided in partnership with National 4-H Council. Share Flipboard Email. Science Fair Projects for Every Grade. Anne Marie Helmenstine, Ph.

Chemistry Expert.Sadie has been an online writer for over six years. Her articles often focus on how to teach science. Chemistry can be defined as the study of matter and how that matter undergoes change. That is a pretty boring definition that leaves out all the fun and excitement that comes with studying chemistry.

Chemistry is all around you; it explains baking and why an apple turns brown when cut open. Chemistry is the secret behind some magic tricks and colorful fireworks. So when you teach your students or children about chemistry move away from using textbooks, because this subject is best learned by observation and hands on experimentation. One note before I move on to the activities. Make sure when you do scientific activities of any kind to go ask questions, go through the scientific method and have them form a hypothesis and discuss if they were correct at the end.

heat experiments for grade 8

It's good practice for more advanced science and it gets the mind working. The first experiment is a very simple one that shows children how to tell if a chemical reaction has occurred by observing the formation of a gas. Next up is the formation of a solid. You can also use baking as an example for this- bread is formed and cannot be separated back into flour and water, but this one is more fun.

The last thing to look for when trying to tell the difference between and chemical and physical reaction is the occurrence of a color change. And finally, here is an activity that can either be done as a demonstration or done by the kids on a smaller scale. It's called elephant toothpaste and it's even better than the exploding baking soda and vinegar. It also shows an example of a reaction that is both exothermic gives off heat and produces a gas.

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Note: If you want to make this a demonstration, you can use a higher percentage hydrogen peroxide. And sometimes even higher online. The resulting reaction will be much bigger and more impressive, but should be done completely by an adult. Teach your students how to make hot ice! When vinegar and baking soda mix, they form a chemical called sodium acetate. We refer to this as "hot ice. Kids love experiments that cause eruptions!

Plus kids love fizzing science experiments. These types of experiments also increase practical life and fine motor skills. The mentos and coke experience is especially cheap, but it is still fun for kids and adults alike! This is a great experiment to help motivate your students to get used to writing observations. Who doesn't love eruptions?

heat experiments for grade 8

Different types of matter can be combined to form mixtures. Thanks to properties such as size, shape, and density, mixtures can be separated back into their different kinds of matter. This experiment will demonstrate this simple concept to your students or children. A chemical change is when 2 substances are mixed together to form something new. This differs from a physical change, which is a substance changing physical forms but still retains its original properties.

Sometimes when a mixture is made it can be hard for kids to tell if a chemical change has occurred. Such as when mixing sugar and water, the sugar appears to be no longer present so children assume a chemical change has happened when in reality the mixture can be separated back into its original substances. There are 4 main clues that a chemical change has occurred.

These are good questions to have kids ask themselves while doing the experiments to help them to determine if a chemical change has occurred or if it is simply a physical change.Learn about air pressure with the classic rising water experiment! You just need a candle, some water, a glass and a plate to do this activity. A quick email to say thank you! Quill was amazing, the kids had a ball, and the community really appreciated your time. I hope to see you all again soon. Our students had a blast and learnt a lot.

Russell is a brilliant presenter. I got a lot out of the PD session. It was really great to get so many ideas and see the experiments first hand. I love the online resources and intend implementing some of the STEM experiments in my program.

Today, myself and my team we were lucky enough to welcome Kate to the Prep School to present 4 workshops on the Science of Sound to our Year 1 students.

I just wanted to write and express my sincere thanks to Fizzics Education for being so accommodating of our changing schedules, and also to praise Kate for her wonderfully engaging, informative and interactive presentation.

Kate had a delightful manner with our girls, was patient and exuberant, and the girls had an absolute ball! Please pass on my sincere thanks to Kate for her flexibility on such a topsy turvey day, and for energising our girls for their learning about Science. Free Chemistry Book! Sign-up to our newsletter and receive a free book! Send us an Email at info fizzicseducation. This website uses cookies to improve user experience. By using our website you consent to all cookies in accordance with our Cookie Policy.

Please select an ebook! Please fill out the details below and an email will be sent to you. Once you get that just click on the link to confirm your subscription and you're all done! Rising water experiment. Comments 2. Read More. Colourful currents. Comments 0.You'll be expected to present data in the form of tables and graphs. Typed reports and posters are the norm sorry, no handwritten text. You should do the project yourself, rather than enlist heavy-duty help from a parent or older student.

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35 of the Best 8th Grade Science Experiments for Classrooms or Science Fairs

More Science Fair Project Ideas. Share Flipboard Email. Science Fair Projects for Every Grade. Anne Marie Helmenstine, Ph. Chemistry Expert. Helmenstine holds a Ph.

heat experiments for grade 8

She has taught science courses at the high school, college, and graduate levels. Facebook Facebook Twitter Twitter. Updated August 07, What paper airplane design flies the farthest? What effect does soap in water have on plants? Is the effect the same at very low soap concentrations as compared with high concentrations?

Three Methods of Heat Transfer!

How much plant food is too much? What soils best support structures, such as buildings? What types of words do babies learn to speak first? Does air temperature affect how long soap bubbles last? Does relative humidity? Are goldfish water chemicals really necessary or are they an unneeded expense?

Can you graft a tomato plant onto a potato plant? Do plants react to the presence of other plants? What materials glow under black light? Can you use the UV light to find invisible, possibly smelly, stains in your carpet or elsewhere in your house? Will chilling an onion before cutting it keep you from crying? Does catnip repel cockroaches better than DEET?EX Erosion - What causes erosion? PX What causes the milk to spoil? EP How do magnets work? How are they made? IP Fire and Burning- what factors affect burning?

IP Fuels and their efficiency in producing energy. IP How strong are nylon fishing lines? IP How strong are plastic wraps? IP Which homemade airplane design flies best? IP What factors affect the bounce of a dropped ball?

IP How do compression and tension make things strong? IP How strong is a toothpick? IP Which type of lawn sprinkler works best?

8th Grade Science Fair Project Ideas

IP How can the strength of light be measured? IP Which battery lasts the longest? IP What affects light reflection?

IP Spectrum and color production- prisms IP How is sound produced? What affects the pitch of sound? IP Electric Motors- principles and factors effecting their efficiency IP Electric Circuits- factors affecting voltage,amperage, resistance IP Magnets and electromagnets- What affects the strength of an electromagnet?These experiments are perfect to bring biology, physics, chemistry and more to life in the classroom.

They also make for really cool science fair projects. Well, not really—please use all the right safety equipment, okay? Combine physics and engineering and challenge 8th grade science students to create a paper cup structure that can support their weight.

Science Fair Project Ideas

This is a cool project for aspiring architects. Learn more: Science Sparks. Budding forensic scientists will love this idea. See if you can compare prints and make accurate matches in the classroom. Learn more: Home Science Tools. Blowing up a balloon with baking soda and vinegar is the classic acids and bases experiment. Take it a step further by experimenting with the carbon dioxide it produces. Learn more: Edventures With Kids.

Prove that plants really do seek out the light by setting up a simple or complex maze. This is a simple 8th grade science project with really cool results. Learn more: KiwiCo. Learn more: Science Buddies. Create a machine to complete a simple task in the most complicated fashion!

This is a neat 8th grade science project, because it allows you to use a variety of physics concepts in a fun way. This experiment combines math and biology to measure lung capacity using a balloon. There are a lot of interesting hypotheses students can form, document, and explore while taking these measurements. Learn more: Blog She Wrote. Use color-changing UV beads readily available online to test the protective power of medicine bottles, hats, clothing, and more.

This is an 8th grade science experiment with nearly endless possibilities. Learn more: Steve Spangler Science. Paper seems smooth and slides apart easily, right? This experiment challenges that notion by interleaving multiple pieces of paper and testing their strength. Follow the directions at the link to build one, or challenge 8th grade science students to experiment with their own construction methods.

Learn more: Babble Dabble Do. Use electrolysis to prove that water really is made up of hydrogen and oxygen. Learn more: Navigating by Joy.

Experiment with optical illusions by creating a tunnel of lights that seems to stretch away into infinity.