This tricky building block challenge asks your learner to think creatively. They will work on their divergent thinking skills as they try to fill up an index card perfectly with building bricks.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

Discover how and which salt melts ice the quickest.

This science fair project idea explores substances that cause a bubble to last longer.

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

In this activity, your learner will be challenged to create their own tic-tac-toe grid out of building blocks.

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.

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

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

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

Science fair project that examines condensation and the conditions needed in order for dew to form.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Learn whether writing things down really makes things easier to remember.

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

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

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

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.

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

Construct and experiment with a periscope using reflected light rays to gather an image.

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

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

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.