1st - 5th Grade Engineering and Science Inquiry Activities : Page 4

What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

Take a dive into the candy jar with this yummy science experiment.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

How powerful is the reaction between baking soda and vinegar? Find out here!

Find out which type of sponge holds the most water.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

In this fun activity, your child will create their very own solar oven to bake s'mores!

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

In this activity your child will create their very own marble maze!

This classic children's game demonstrates how sound travels through air vs. through a solid.

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

In this fun experiment, we'll find out how color affects heat absorption!

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.