4th - 7th Grade Science Activities : Page 13

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

In this plant habitats activity, children play the role of an ecologist and take surveys of different areas to discover the best habitat for dandelions.

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!

Wonder why bugs always fly around your lights at night? This experiment determines whether insects are attracted to the heat or the light.

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.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

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.

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

In celebration of Earth Day, help your fifth grader write a poem from the Earth to its inhabitants.

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

This science fair project idea explores whether people have an innate feel for the passing of time from a few seconds to 20 minutes.

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.

What happens when eyes see something that the brain knows cannot be true? In this science activity, the brain has to "fudge" it when interpreting what you see.

This experiment that explores water and air pressure will amaze your fifth grader as it appears that a single card is holding water in an upside-down glass.

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

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

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