4th Grade Science Activities : Page 8

This science fair project explores how osmotic pressure forces water through the root up into the plant.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

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.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

Create a bee garden to help shelter bees in your area.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

This science fair project idea examines whether boys and girls differ in reflexes.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

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

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

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

In this science fair project, students use the streak test to tell minerals apart from each other.

Try hammering some plants with your kids to teach them a valuable lesson in flower science while making beautiful artwork in the process!

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

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

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.