Showing Results for how when : Page 9

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

This science fair project idea experiments with spinning color wheels and optical illusions.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

Could there be toxic chemicals lurking in the cupboards and closets of your home?

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

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

This project determines what category of person is most likely to be ticklish.

Explore scientific concepts with this experiment that introduces kids to the scientific method!

Have your child kick off their summer vacation by making a miniature water slide!

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

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

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

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

In this design challenge, your child will make a bottle rocket using typical household items.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

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

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

This science experiment tests if dog saliva can really help heal wounds.

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

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

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.