2nd - 5th Grade Engineering and Science Inquiry Activities : Page 15

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

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

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

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

This science fair project idea explores whether white light can be separated into different colors.

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

This experiment examines whether storing your orange juice at different temperatures affects its acidity.

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot navigate around several obstacles.

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

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.

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

In this activity, children will work on their mathematics and engineering skills as they attempt to recreate the Eiffel Tower out of building blocks!

This science fair project idea explores whether cats can be trained in the same way that dogs can.

Find out whether putting something on top of a plant will inhibit its growth.

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

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

This project explores ways to prevent static electrical shocks.

You've heard the expression "burn rubber" but do you know how heat affects rubber? Examine the impact of temperature on rubber in this fun science experiment.

In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.

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

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

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot move in a pattern related to the sound and rhythm of music.