1st and 2nd Grade Science Projects Activities : Page 3

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

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.

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

This science fair project idea investigates how the shape of an object affects drag.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Do different types of oil mix or stack? Find out in this science fair project idea!

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

This science fair project idea explores how length affects the weight a bridge can hold.

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

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

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

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 science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

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

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

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

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Discover whether cold or hot water from the faucet will boil faster on the stove.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

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

People have favorite flavors, but what about ants? Which ant food is the most popular?