Third Grade Science Experiments (Page 139)

Ball Dribbling Science: Weekly Science Project Idea and Home Science Activity Spotlight

Blog Post

In this week's spotlight: a sports science that looks at the physics of what is going on when you dribble a basketball. After you push the ball to the floor, the ball meets the floor or court and then returns, but it doesn't necessarily return to the same height. What does the surface of the floor have to do with how a ball bounces when dribbled, how much effort a player has to use to keep the ball dribbling uniformly, and what is going on with the energy of the ball in motion? Put it to… Read more

Balloon Powered Sound! Build Your Own Balloon Amplifier

STEM Activity

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Have you ever watched an old movie, or a cartoon, where a character holds a cone to their ear in order to hear what people are saying? Believe it or not, those cones (known as ear trumpets) were the very first hearing aids and were very popular for a time. Even Ludwig Van Beethoven used one! They helped people hear by acting as a sound amplifier, collecting sound waves and focusing their energy into the ear. In today’s activity you are going to make a different type of sound amplifier… Read more

Be Seen After Dark—What Clothes Keep You Safe?

Science Fair Project Idea

Scientific Method

Did you know that the most likely time to be struck and killed by a car in the United States is at dusk, dawn, or at night? In 2014, 3 out of every 4 pedestrian fatalities happened in these types of poor light conditions. Is there something you could do to decrease the chances you, your friends, and your family members are safer when walking or biking at night? Do you think the types of clothes that you wear could make a difference in how visible you are to drivers? Explore the science of… Read more

Beaches and Sand Science Projects

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Combine fun in the sand with hands-on science experiments and activities to learn more about beaches, sand, and preventing ocean pollution. STEM Experiments to Learn More About Beaches and Sand Heading to a local beach can be lots of fun. Whether you enjoy walking on the firm sand by the water's edge or playing in softer sand, beaches have plenty of sand to go around. But where does sand come from? What happens to sand when the tides move in and out?… Read more

Bend or Break? Candy Science

Blog Post

What happens when you bend your favorite candy in half? Does it break? Does it bend? Does it snap back into shape? In this week's materials science-themed family science activity, students put candy to a "bend it" test to explore how some materials are more flexible than others. While it may be obvious that some candy bars will break (or snap in half) when bent while other more "gummy" candies bend, changing the temperature of the candies gives this experiment an extra… Read more

Biodiversity Survey

Science Fair Project Idea

Scientific Method

Survey your area to find out which species of plants and animals live there. You might be surprised to find out that something you grew up thinking was very common, is actually quite unique! For example, if you live in the great plains, then you may think that prairie dogs are a nuisance or a pest. Actually, some species of prairie dogs are only found here, and have a very important role for short and tall grass prairie ecosystems. The prairie dogs are an important part of the food-chain, and… Read more

Bird Science: Weekly Science Project Idea and Home Science Activity Spotlight

Blog Post

In this week's spotlight: a pair of zoology science projects that encourage families and students to use their observation skills to learn more about birds. What can you deduce about a bird's lifestyle or habitat by looking at its feet? More than you might think! Both the independent science project and the family science version guide students in an engaging bird feet scavenger hunt. The closer you look, the better, so pack a picnic lunch and head to a nearby park or… Read more

Bits, Bytes, and Bases: Write a JavaScript Binary/Decimal/Hexadecimal Converter

Science Fair Project Idea

Scientific Method

This is a challenging first computer science project. You'll learn the basics of how digital devices can represent numbers using only 0's and 1's, and you'll write a JavaScript program to convert numbers between binary, decimal and hexadecimal notation. Read more

Boredom Busters: STEM Activities for End-of-Year and Summer Fun

Blog Post

As the end of the school year approaches, these activities can be great fillers in between testing, in odd spaces in your schedule, or just for general end-of-the-year fun. These activities also are perfect for summer STEM in a variety of settings. 8 Free STEM Ideas to Fill End-of-Year Time The final weeks of the school year often mean varied schedules and pockets of time in the classroom that can be hard to fill. The activities featured here use… Read more

Boys and Girls All Around the Town

Science Fair Project Idea

Scientific Method

Do you ever say you like to go somewhere, and your friend says, "Yuck, that's for girls!" or "Ewww, that's for boys!" Do this experiment to find out if there are some places that girls like to go more than boys, or vice versa. Read more

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