3rd and 4th Grade Science Projects Resources : Page 10

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

Make a backbone model to explore human anatomy and life science.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

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.

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.

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

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.

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

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

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!

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

Do you think heat can affect a plant's growth rate?

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.