2nd - 5th Grade Science Projects Activities : Page 15

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

Cleaning can be a chore, but not with this sudsy experiment!

This science fair project investigates why the number of visible stars changes from place to place.

Science fair project that determines whether mass and weight are the same or different.

Science fair project which determines whether a person's taste in music is dictated by the key that the song is written in.

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

You've heard the expression "burn rubber" but do you know how heat affects rubber? Examine the impact of temperature on rubber in this fun science experiment.

Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.

Will increasing the amount of salt in water effect how slow or fast the water freezes?

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

This science fair project idea determines the probability of a coin landing heads or tails.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

Science fair project which determines whether people are more likely to follow rules if they are easy to understand.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

This science fair project idea explores whether cats can be trained in the same way that dogs can.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

This science fair project idea explores whether there is a connection to the color a person wears and the way their emotional state is perceived by others.