In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.

Pair a planetarium visit with this fun art project that mimics the look of far-off galaxies.

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

In this fun experiment, learn about brand awareness and the influence of media on children by testing logo recognition in different age groups.

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

This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

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

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

This science project allows students to study the psychology of happiness.

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

Your child will learn science and make a fun new malleable toy with this balloon sandbag science experiment.

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.

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

This project examines what types of objects burn and which burn faster and cleaner.

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.