3rd Grade Engineering and Science Inquiry Activities : Page 6

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

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

In this science fair project you will make a model of a cell membrane using very simple material.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

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

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

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

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.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

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

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

In this activity, students will think about the form and function of household objects as they compare and contrast kitchen serving spoons of various sizes and designs.

Cleaning can be a chore, but not with this sudsy experiment!

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

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

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.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

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 study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.