Seventh Grade Science Experiments (Page 48)

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Celebrate Lunar New Year and the Year of the Horse with these free science and engineering activities for enriching hands-on STEM. What is Lunar New Year? Lunar New Year (also known as Chinese New Year) begins February 17, 2026. Lunar New Year starts with the new moon that happens in late January or February. Celebrations continue for 15 days and culminate with a Lantern Festival. In Chinese culture, 2026 will mark the Year of the Horse. There are… Read more

20+ Next-Level Makerspace STEM Projects

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Level up your makerspace with these activities and STEM explorations for students ready to take next steps in robotics, circuit building, programming, electronics, and more! Take Your Makerspace to the Next Level! Our original jump-start your makerspace collection highlights 26 maker-inspired STEM activities to encourage and support hands-on creativity, engineering, and innovation. This new collection builds upon the original to feature 16 STEM activities to take your makerspace to the next… Read more

24 Halloween Science Experiments!

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From icky slime to candy coatings, fake blood, wearable LEDs, a fire snake, and things that foam, light up, or glow in the dark, we have STEM suggestions for spooky, Halloween-themed science and engineering to explore with students! Halloween Science and Engineering Projects! Trick or treat! It's Halloween season! With its emphasis on the ghostly, the ghoulish, the gruesome, the spooky, the icky, and, of course, the sweet (to eat), Halloween brings an assortment of exciting themes to… Read more

3D Print with Icing: No 3D Printer Required!

STEM Activity

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7 reviews

Are you wondering how a 3D printer works? In this fun activity, you will be the printer and make colorful 3D prints using royal icing. No 3D printer is required, and your prints are edible! Read more

7 Wearable Circuits Science Projects

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Explore cutting-edge electronics and engineering with wearable electronics science projects. From e-textiles and sewn circuits to personalize clothing and accessories to DIY wearables for health and safety, students can design, build, and test their own. Experiment with Wearable Electronics Wearable electronics, also called "wearables," are circuits and electronic devices that are designed to be worn. Devices like smart watches and fitness trackers are a familiar form of wearable, but many… Read more

A Really Long Straw

STEM Activity

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Have you ever used a crazy straw? Some spiral their way up. Others have fancy colors or decorations. Some are thin and others are wide. But just about all of them leave you sipping your drink from about the same distance. Why? Wouldn't it be fun to poke your head out of an upstairs window and secretly take a sip from a drink way below? Would it even be possible? With this activity, you'll see if you can set your own record for the longest working straw! Read more

A Solar-Powered Robot Bug

Science Fair Project Idea

Scientific Method

"How do you frighten a grasshopper? And what does that have to do with light?" These are a couple of questions you're probably asking yourself after reading the title. Well, The Frightened Grasshopper Solar-Powered Bug is actually a toy grasshopper that vibrates when it is placed in sunlight or near a lightbulb. It stores up the energy from light, and converts it into motion. You will use this fun toy to explore how the brightness of the light affects the motion of the solar-powered insect. Read more

Acid Rain and Aquatic Life

Science Fair Project Idea

Scientific Method

Chemicals from Earth's atmosphere are making their way down to the planet! Not in spaceships, but in rain. The acid rain can infiltrate ground water, lakes, and streams. How does acid rain affect aquatic ecosystems? Read more

An Aerobic Exercise: Yeast Metabolism with and without Aeration

Science Fair Project Idea

Scientific Method

This is a straightforward project on glucose metabolism in yeast. You will grow yeast under aerobic and anaerobic conditions and measure carbon dioxide output to assess metabolic efficiency. Read more

An Experiment on Seed & Fruit Dispersal

Science Fair Project Idea

Scientific Method

Up, up, and away! If you have ever made a wish and blown the fluff of a dandelion, you have witnessed how some plants are adapted to spreading their seeds using the wind. The tiny, furry parachute allows the seeds to be picked up by the wind and to be carried far away from their parent plant. In this experiment, you will make models of seeds and fruit to investigate dispersal by wind and to evaluate the relationship between the structure of the seed and its ability to be dispersed by the wind. Read more

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