4th and 5th Grade Science Activities : Page 18

What happens when eyes see something that the brain knows cannot be true? In this science activity, the brain has to "fudge" it when interpreting what you see.

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

Introduce your fourth grader to the concepts of solstices by observing the length of her shadow on the shortest day of the year, compared to other solstices.

This project investigates the affect of storage temperature on microwave popcorn.

Science fair project which examines the relationship between frequency of spider web vibration and spider's response time.

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

This science fair project idea examines how well individuals can remember a story they were told and how accurately they pass that story along.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

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

Popsicles aren't just for the summertime, this activity takes cold and turns it into a creative and tasty science experiment.

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

This activity challenges your student to use spatial reasoning and computational thinking to program multiple robots.

It's food. It's Thanksgiving tradition. And guess what: Cranberry Sauce is also science! Try our simple recipe/experiment.

Glass is see-through, but usually you can still see that it is there. In this experiment, we use baby oil to make glass go completely invisible.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

This project examines whether playing music during class helps students learn or if it distracts students from learning.

How do organic materials become soil? This science experiment measures what materials biodegrade.

This science fair project idea explores whether people have an innate feel for the passing of time from a few seconds to 20 minutes.

This science research project challenges students to think of more effective lobster farming methods.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

Making your own glass cleaner is easy, effective and inexpensive!