2nd and 3rd Grade Engineering and Science Inquiry Activities : Page 2

This science fair project idea investigates which objects float and sink in honey, water, and oil.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

This project examines whether people's taste perception is influenced by what they see.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

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

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

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

In this design challenge, your child will create a parachute for a small toy using typical household items.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

In this experiment you will replicate the mummification process by making a hot dog mummy.

Plants and light seem to be good buddies, but how far does the friendship really go?

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

Find out whether a longer airplane will fly farther or a wider paper airplane.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Discover whether cold or hot water from the faucet will boil faster on the stove.

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

This science fair project idea explores whether talking to a plant will help it grow.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

Reinforce your child’s understanding of the alphabet by helping them construct all of the letters using pipe cleaners.