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

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

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

Here's a simple science activity that will help your child better understand how wells bring us water.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

In almost every preschool classroom is a sensory table. Learn how to make one at home!

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

Help kids tap into their inner inventor by teaching them how to make peanut butter through trial, error, and lots of taste testing!

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

This science fair project idea investigates if webbed feet help a duck (and others) swim.

Help children understand the power of germs and the importance of hand washing with this visual activity that introduces the concept of scientific inquiry.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

This science fair project idea determines which method of hand cleansing is the most effective.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.

This science fair project teaches students the differences between fruits and vegetables.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

This project makes young children uniquely aware of their sense of touch and its ability to alone give them information about the world around them.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

This science fair project teaches students about wilting and browning of salad greens.

Alive or not? This yeast experiment you can conduct with your little scientist explores the answer to this timeless question.

In this fun activity, frozen cubes of paint provide your preschooler with a cool new way to paint a masterpiece.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.