Elementary School Science Experiments (Page 174)

STEM Activity

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Have you ever played a game at a carnival, trying to win a stuffed animal or other prize? It might look easy, until you try it. Why are those "simple" games at the fairs and carnivals so hard? Is it really lack of skill or coordination or do those concessionaires use some basic laws of science to help them set up the games in their favor? In this science activity, you will investigate how physics can help you win — or lose — at the classic game of trying to knock over a pyramid of… Read more

The Wagon Wheel Effect Optical Illusion

STEM Activity

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Have you ever seen a video where it looked like a car's wheels were spinning backwards even though the car was driving forward? This is called the wagon wheel effect, named after old movies where it looked like wagon wheels were spinning backwards. Even though you cannot see the effect in person, it can show up in videos of spinning objects. Find out why in this project and make your own videos of the wagon wheel effect! Read more

Tie-Dye Using Permanent Markers: Weekly Science Activity

Blog Post

In this week's spotlight: a chemistry-focused family science and craft activity that lets students explore the concept of solubility while using permanent markers to decorate a T-shirt (or piece of fabric). Permanent markers are designed to be lasting, so what happens when you add water? What happens when you add alcohol? Does the marker ink react the same to both water and alcohol? Put these questions to the test in a fun hands-on science experiment. At the end of the project, students… Read more

Tiling with Spidrons

Science Fair Project Idea

Scientific Method

This is a great science fair project for someone who is interested in both mathematics and art. Spidrons are geometric forms made from alternating sequences of equilateral and isosceles (30°, 30°, 120°) triangles. Spidrons were discovered and named by Daniel Erdély in the early 1970's, and have since been studied by mathematicians and artists alike. This project is a great way to learn about the mathematics and art of tiling patterns. Read more

Time is Money

Science Fair Project Idea

Scientific Method

How many times have you heard from your parents: "Clean up your room!" or "Don't forget to unload the dishwasher!" By applying principles of industrial engineering and time management, you can speed through your chores and have more time to kick back and relax. Read more

Time to Spring Clean…Your Water!

STEM Activity

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It’s easy to take our clean water for granted, we’re so used to being able to drink from a fountain or faucet whenever we’re thirsty. But did you know that over 1 billion people in the world don’t have access to clean water? Part of the problem is that cleaning (or purifying) water is not an easy task. Not only do you need to remove dirt and other debris, you also have to get rid of all the invisible bacteria and micro-organisms that can make people sick. In this… Read more

Timing the Tides

Science Fair Project Idea

Scientific Method

Have you ever been to a tide pool during low tide? Some intertidal animals in the low tide zone are left in a tiny pool of water when the tides go out. Other intertidal animals that live in high tide zones may be left to dry out during low tide. How much time does each zone spend out of water during a tidal cycle? Read more

Tireless Tides: Extracting Energy from Ocean Tides

Science Fair Project Idea

Scientific Method

Renewable energy is the energy that is extracted from natural sources, such the Sun (solar), earth (geothermal), wind, and water (hydropower). These sources are renewable because they can be replenished by the same natural sources within a short period of time. Hydropower energy is extracted from moving water, like ocean wave energy and tidal energy. In this energy science fair project, you will make a model of a tidal barrage (also known as a dam) and investigate how emptying the tidal barrage… Read more

To Infinity and Beyond: Plan a City of the Future with Sim City.

Science Fair Project Idea

Scientific Method

Everyday, people in your city or town walk to school, ride the bus and go to work, and go to the library to research their science fair projects. But what if the library was 20 miles away from your home? Would you go to the library? What if there were no police officers or fire stations in your city, or if they were located across town, away from where most people live? What if there were no movie theaters? What would you do with your friends? Many people really like living in cities in which… Read more

Toothbrush Robots at Home

Blog Post

You won't even need batteries to do this family-friendly robotics activity with your kids. Explore robotics design with a fun low-tech setup! How does the slant of toothbrush bristles affect the way a bristlebot-style robot moves? Simple Robot for Kids Robots are fun for kids of all ages. With a few electronics parts, kids can make and explore simple robots like Bristlebots and Art Bots that skitter around on toothbrush, brush, or even magic marker legs. Projects like these make excellent… Read more

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