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Ninth Grade Science Experiments (top 2,000 results)

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You Want Fries With That? The Science of Crispy Potatoes
Science Fair Project Idea
Scientific Method
The first bite of a fresh-picked apple, the crunch of morning toast, the deep cut into rich, flaky layers of baklava, the pleasing snap of a chip. Besides being delicious, what do these foods have in common? They're crisp. They have a brittleness that causes them to shatter in your mouth when you first bite into them. It's a sensation that many people enjoy. Making potatoes crispy requires some extra cooking steps, as you'll discover in this food science project, but the results are well worth… Read more
Yuck, What Happened to My Apple? How Food Wrappings Affect Spoilage
Science Fair Project Idea
Scientific Method
Have you ever eaten half an apple and saved the other half for later, only to find that, by time you were ready to eat it, the apple did not look as tasty anymore? It may have turned brown and shriveled, and, if left out long enough, it may have spoiled. Do you think you could have prevented the other half from spoiling, or made it spoil less, if you had stored it differently, such as in the refrigerator in a food wrapping? In this cooking and food science project, you will investigate which… Read more
Zapping Yeast with X-rays
Science Fair Project Idea
Scientific Method
Have you ever wondered how X-rays affect living organisms? You have probably had X-rays taken at the dentist's or doctor's office. These X-rays are considered to be relatively safe, but every X-ray exposes a person to some radiation, specifically electromagnetic radiation. Radiation is energy that travels through space as either waves or high speed particles. Watch this video to learn more about electromagnetic radiation. When the energy in X-rays encounters an object, it can… Read more
10 Fun Wintry Science Activities
Blog Post
Don't let winter weather put the freeze on your science class! Try one of these wintry science projects or activities with your students for exciting snow, ice, and cold weather-themed science. Ten Winter Science Activities! Note: For an updated collection of winter-themed science and engineering activities and lessons, see Winter Science Projects, Lessons, and STEM Activities. Foaming Fake Snow: mix up fake snow and make snow people or other small… Read more
10+ Valentine's Day Candy Science Projects
Blog Post
In celebration of Valentine's Day, take a look at 10+ exciting hands-on chemistry, food science, physics, and math projects that involve candy. Bend or Break? Candy Science M&M Geometry Candy Waterfalls: Can Candy Flow Like Water? Candy Camouflage Candy Snap M&M Math Candy Geodesic Dome Dancing Candy Hearts Making A Candy Waterfall: Can Solids Flow Like Liquids? Candy Color… Read more
11 Launch and Catapult Science Projects
Blog Post
Put physics in motion! Experiment with the science of launching and catapulting with fun hands-on science and engineering projects. How can science explain trajectory, flight path, and aim? Launch and Catapult Science. Hands-on STEM with Science Buddies. www.sciencebuddies.org K-12 Science Projects and Activities The following Science Buddies projects explore the science of launching and catapulting with trebuchets, rockets, catapults, or similar… Read more
12 Great Ideas for Engineers Week
Blog Post
Celebrate engineers and the spirit of engineering by doing a hands-on STEM project or activity with your students! Our list of 12 fun STEM ideas will get you started! E-Week: Innovative Engineering Projects and Activities for K-12 Students. Hands-on STEM with Science Buddies. www.sciencebuddies.org Celebrate Engineers Week with Your Students Our Engineers Week collection for features some excellent choices for student engineering projects and… Read more
15 Kitchen Science Projects Roundup!
Blog Post
Experiment with kitchen science with a great hands-on science project idea from Science Buddies. From molecular gastronomy to making the best grilled cheese and marshmallows, we've got suggestions for fifteen tasty kitchen-based STEM explorations for students. Hands-on Science in the Kitchen. Hands-on STEM with Science Buddies. www.sciencebuddies.org K-12 Science Projects and Activities in the Kitchen For kids interested in chemistry or in cooking and… Read more
19 Science Activities for Mother's Day
Blog Post
Combine crafty ideas for Mother's Day with STEM for creative gifts moms will love. With a few simple materials, kids can do one of these science activities to make something thoughtful or unique to give mom or another special person. STEM Activities to Make or Do and Give! Whether made surreptitiously at home or made in the classroom and set aside to take home, Mother's Day is often marked with "I made this" gifts for kids to proudly present to Mom or… Read more
3 STEM Projects for Valentine's Day
Blog Post
Put Valentine's Day-themed candies to use in science class with one of these fun hands-on STEM activities. Conversation hearts, candies, and a robot that delivers! It is easy to give a Valentine's Day spin to hands-on science and engineering activities with students. Candies in Valentine's Day colors work well for a range of science projects, and many engineering projects can be recast for Valentine's Day by making colored papers, tape, and craft… Read more
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