Preschool - 3rd Grade Engineering and Science Inquiry Activities : Page 2

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

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

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

This project investigates the affect of storage temperature on microwave popcorn.

Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

Discover whether a metal will expand under hot water.

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

This science fair project idea investigates how magnetism can defy the force of gravity.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

In this science fair project, young children will become aware of and have the opportunity to experience the four basic tastes: sweet, sour, salty, and bitter.

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

Reinforce your child’s understanding of the alphabet by helping them construct all of the letters using pipe cleaners.

Make your own greenhouse - out of a balloon! Your child will learn how greenhouses work as they plant radish seeds and watch them grow.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

This science fair project idea explores whether talking to a plant will help it grow.

Your preschooler will engage their senses by making a scented pumpkin to decorate your house.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

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.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

Camouflage is one of the most important animal adaptations in the African savanna biome. Kids create their own camouflage with this fun science fair project.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.