Third Grade Science Experiments (Page 163)

Wily Waves: Build an Oscillating Water Column to Extract Energy from Ocean Waves

Science Fair Project Idea

Scientific Method

The ocean is a wondrous force of nature. It affects the weather, and provides us with food and renewable energy to power our lives. How can the ocean provide us with renewable energy? One way is to extract the energy that is in the waves. There are many kinds of power systems that can be installed to extract energy from the waves, depending on the location. In this energy and power science project, you will build and test a simple model of an oscillating water column device to create power. How… Read more

Wind Turbine Efficiency

Science Fair Project Idea

Scientific Method

Try different wind turbine/propeller (chord length, pitch) designs by making models from balsa wood. Connect the spinning axle to a DC motor and measure the voltage produced across a resistor to measure power output. Use fan as wind source. (Judge, 2004) Read more

Winglets in Wind Tunnels

Science Fair Project Idea

Scientific Method

Winglets are the short vertical "fins" at the wingtips of some airplanes. Have you ever wondered why they are there? If you have access to a wind tunnel, you can build model airfoils with and without winglets and see for yourself. If you're really ambitious, you can also build your own wind tunnel. Read more

Winter Science Projects, Lessons, and STEM Activities

Blog Post

Warm up with hands-on science and engineering! Match winter's cold weather, snow, and ice with these free lessons and activities for engaging hands-on STEM. STEM Activities to Bring Winter Themes to Science Class 1. Make Foamy Snow In the Foaming Fake Snow activity, students use baking soda and water to make fake snow they can then use to make snow people or other small sculptures. Like real snow, the fake snow won't last. What happens when… Read more

Wire Wilt: How Light-Emitting Diodes Fade As Temperature Increases

Science Fair Project Idea

Scientific Method

What's your favorite thing to do on the hottest day of the year? Dip your toes in an icy river? Hang out by the pool? Retreat to a cool basement? Lie motionless in the shade? You're probably not too eager to move around and put out a lot of energy, like mowing the lawn in the mid-afternoon sun. Well, you're not the only one. In this electronics science fair project, you'll find out that some semiconductor devices, like light-emitting diodes (or LEDs), act the same way. As their internal… Read more

With a Little Bread as Bait, Can You Make a Bird Migrate?

Science Fair Project Idea

Scientific Method

You might like to play in the autumn leaves and winter snow, but have you noticed that many birds don't like to stick around for the cold weather? And instead of the birds you're used to seeing in the warm months, your new feathered friends might be Canada geese. Why is that? Various types of birds and other animals travel from one place to another either in search of food, warmer temperatures, or other things they need to survive. This type of traveling is called migration. Try starting your… Read more

Wizard Experiments for Science Class

Blog Post

Making learning fun is sometimes half the battle! With the right activities, educators can ensure learning about science and engineering involves hands-on fun for students of all ages. Build in some "spellbinding" science fun with STEM experiments on a wizards theme! Wizardly STEM! Connect science with popular stories of magic and wizards, from Merlin to Harry Potter, for hands-on science exploration that will have students eager to mix up… Read more

Wizardly STEM! (Awesome Summer Science Experiments)

Blog Post

Check in each week at Science Buddies this summer for our Awesome Summer Science Experiments series! Each week, we'll highlight a few activities for awesome science and engineering kids can do at home. We've got a whole summer of fun STEM themes lined up for kids of all ages — for free. This week: awesome summer science experiments with a wizardly twist! Awesome Wizardly STEM Our Awesome Summer Science Experiments picks for Week 3 will bring out… Read more

Worm Hunt: Isolating Soil Nematodes from Your Backyard

Science Fair Project Idea

Scientific Method

Do you know what is living in your backyard? How about at the playground, or in your compost pile? Nematodes, also called roundworms, are the most abundant animal on Earth and they might be living in any of these places. In this science project you'll isolate nematodes from several soil samples to discover the best nematode habitats. Read more

Write and Read Braille

STEM Activity

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Have you ever been in an elevator and wondered what the many little dots on the buttons are for? You can also find these dots in public buildings on room number signs or on ATMs. These arrangements of dots are a special writing system for the visually impaired called braille. By feeling the dots with their fingers, people can read what is written on a sign or elevator button. Do you want to find out how to read with your fingers? This activity will show you how! Read more

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