Third Grade Projects, Lessons, Activities (Page 18)

Bouncing Basketballs: How Much Energy Does Dribbling Take?

Science Fair Project Idea

Scientific Method

Playing basketball can be hard work. Players not only constantly run around the court, but just dribbling the basketball takes a lot of effort, too. Why is that? It has to do with how the basketball bounces. When the ball hits the court, its bounce actually loses momentum by transferring some of its energy into a different form. This means that to keep the ball bouncing, players must continually put more energy into the ball. In this sports science project, you will determine how high a… Read more

Build a Cooler

STEM Activity

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How does a cooler keep things cold? Which material makes the best insulation? Try this project to find out how long you can keep an ice cube from melting once it's out of the freezer! Read more

Can Every Part of a Plant Regrow?

Science Fair Project Idea

Scientific Method

Have you ever picked a flower and tried to make it stay alive in a cup of water? How long does that last? Do some flowers last longer than others? Why do you think that is? In this experiment, you will compare different plants to see which ones can regrow or regenerate after damage and learn why some plants are better at it than others. Read more

Design Your Own Vibrobots

Science Fair Project Idea

Engineering Design Process

Vibrobots are fun little robots built from common household supplies, that are powered by vibrating motors. In this engineering project, you will design and built your own vibrobot. Would you rather have a robot that skitters quickly across a table or one that spins wildly in circles? How about a sumo-wrestling bot that can push others out of its way? The choice is up to you! Read more

Develop Your Own Soda Pop Recipe

Science Fair Project Idea

Scientific Method

Carbonated bevarages are quite popular in the United States (despite the health risks of drinking too much of the sugary ones). Many people love their bubbly, fizzy flavors. But how do the bubbles, fizz, and taste get into the water? In this cooking and food science project, you will work with baking soda, citric acid, and sweetener to create a your own soda pop. Once you develop your recipe, try it out on your friends and family. Who knows? You might create the next soda pop sensation! Read more

DIY Mini Propeller Car

STEM Activity

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Build your own mini propeller car with craft materials and a simple circuit in this fun STEM activity! Read more

Do Submarines Need Fins?

Science Fair Project Idea

Scientific Method

What keeps a submarine from spinning out of control? In this science project, you can investigate how submarines use stabilizing fins to move forward. You might even figure out the secrets to maneuvering a submarine! Read more

Do-Re-Mi with Straws

STEM Activity

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Have you ever wondered how a musical instrument produces the beautiful sounds that it does? To make a certain note, the instrument has to make a certain sound wave. Depending on the instrument, the sound wave that is made can be affected by changing the length of part of the instrument, such as the strings in a piano or on a guitar, or a trombone’s air column. In this science activity, you will make your own musical instruments using drinking straws and explore how changing the length of the… Read more

Flippy, the Dancing Robot

Science Fair Project Idea

Scientific Method

Have you ever seen a robot dance? In this project you will build your own simple flipping, tumbling robot that can dance around on the floor or a tabletop! If you have never made a robot before and would like to get started with a fun, easy project, this is a great place to begin. You will follow directions to make a basic robot, and then make your own additions to make it even better! Read more

From Contaminated to Clean: How Filtering Can Clean Water

Science Fair Project Idea

Scientific Method

Living in the industrialized world, like the United States, we are fortunate because we don't have to worry about the quality of our drinking water. Your community has the means to clean and provide water to you. But in many parts of the world, people don't have this luxury. Whether it is due to war or poverty, the lack of clean water leads to many health and social problems. In this environmental engineering science project, you will learn about different methods to filter out impurities in… Read more

Third Grade Projects, Lessons, Activities (665 results)

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