Third Grade Science Experiments (Page 184)

Build a Sandcastle That Can Support a Brick

STEM Activity

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Can you build a sandcastle that can support a brick? Try it out in this fun STEM activity! Read more

Build a Wearable Device Using an Arduino to Keep Astronauts Safe on Mars

Science Fair Project Idea

Engineering Design Process

Astronauts on Mars missions must be protected from hazardous environments, like steep cliffs, rocky terrain, and extreme temperature variations. How can geofencing help? In this project, you will design a system that uses geofencing technology coupled with biosensors to ensure astronaut safety. The system will create a virtual boundary around astronauts, providing alerts if they approach dangerous areas or leave designated safe zones, or if their vital signs fall below a certain threshold. Can… Read more

Build an Ion Wind Rotor

STEM Activity

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Can you use electrically charged "wind" to make something move? Find out in this fun project as you build your own ion wind rotor. Read more

Build Fun Robots with Students

Blog Post

Encourage students to explore robotics with a guided, hands-on project or activity. Science Buddies has projects, activities, Lesson Plans, and convenient kits that make it easy to do robotics with students. Build Fun Robots! Robotics projects for K-12 students. Hands-on STEM with Science Buddies. www.sciencebuddies.org Student Robotics Projects and Activities Science Buddies has projects at all levels for student robotics. See our Bring Robotics to… Read more

Build Your Own Xylophone Out of Copper Pipe

Science Fair Project Idea

Scientific Method

Did you know that making a musical instrument is not just an art, but a science, too? You can discover just how scientific by building your own xylophone (or a set of chimes) from copper pipe. First you'll need to do some research about the math and physics involved in the sounds of a xylophone. For example, there are equations that describe the transverse (side-to-side) vibrations of a pipe. These vibrations create the sounds you hear. So, to get specific sounds, xylophone makers must apply… Read more

Building Beaches

STEM Activity

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A day at the beach is a wonderful way to spend time with your family and friends. You can swim, play games and build sand castles. But have you ever wondered how the beach you are standing on came to be? How, for example, did all of that sand get there? Beaches are formed and continually changed by the ocean's waves moving rock particles onshore, offshore and along the shore. In this activity, you can investigate how beach formations are made by some parts of a beach that can resist erosion… Read more

Building Toys: Doing Fun Science at Home during School Closures (Activity #5)

Blog Post

Follow along with a Science Buddies parent who is using family STEM activities to keep her kids learning at home during the COVID-19 school shutdown. New posts every Monday, Wednesday, and Friday. Today's adventure... playtime and science time converge when building parachutes for favorite toys. Building Toys Drives Away Boredom "I'm bored" is one of those sentences I hate as a parent. It ranks right up there with "Are we there yet?". These days… Read more

Camera 'Shakes'

Science Fair Project Idea

Scientific Method

You can compare the picture quality for photos taken at different shutter speeds with the camera handheld vs. with the camera on a tripod. (This is best done with a camera that has manual exposure control.) Read more

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

Blog Post

In this week's spotlight: a pair of zoology science projects that let students and families explore how some animals use camouflage so they can better blend in with their surroundings. Does camouflage really make a difference when it comes to the relationship between predators and their prey? Give it a try in fun hands-on science activity using M&M® and Skittles® candies. If you are a hungry predator trying to grab a specific color of M&M, how hard will it be to find your… Read more

Can Garlic Prevent Crown Gall?

Science Fair Project Idea

Scientific Method

Crown gall is a plant disease caused by the soil bacterium Agrobacterium tumefaciens. This project uses tomato plants to investigate whether garlic extract can prevent crown gall infection. Read more

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