Plants help keep a house cool! This article includes step-by-step instructions for completing this fun and interesting science experiment.

Free science fair project idea that examines air pollution in local environments. Particles are trapped by petroleum jelly on microscope slides.

Which public places harbor the most bacteria and germs? Test different environments to find out where the most bacteria live in this science project.

Study the effects of wind and temperature on evaporation. Place wet sponges in different environments, check at regular intervals, track time required to dry.

Make a bear cave for your child to play and explore, learning about bears and winter hibernation.

In this experiment you will become familiar with the properties of dry ice while creating interesting effects like ice bubbles!

This activity is a fun way to "go fishing" with your preschooler, while learning about the concepts of freezing and melting.

A project to reinforce learning about the layers of the rainforest, rain forest ecosystem, and the greenhouse effect.

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

Celebrate Dia de los Muertos by baking pan de muerto. In this 5th-6th grade activity, your child will explore another culture while learning about baking.

This potato cannon activity teaches your middle schooler about the principle of Boyle's Law. Make a potato cannon and have a blast learning about science.

This experiment evaluates if the temperature of the environment that you work in affects your ability to perform mental tasks.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

A fun activity for a hot day, this will give young kids a chance to experiment with beginning science and math â and splash around in the process!

Any time is the perfect time to whip up a delicious batch of fluffy pumpkin cookies.

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.

Shamrock Stamps are a great way to celebrate St. Patrick's Day. Simple and symmetrical, this symbol of Irish culture is the perfect shape for prints.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

Measure temperature change over time using a variety of insulation materials. Be creative with insulation materials: scarves, yarn, socks, feathers, oil, etc

Study the impact of environment on seed germination among three materials: soil, paper towel, and cloth. Note when seeds germinate and how well they germinate

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

This science fair project will help learners determine whether algae can be made to grow by feeding it supplementary carbon dioxide.

Want a fun way to teach your kid to tell time? Making a plate clock is a great way for him to learn how to tell time in a way he'll actually find exciting.

Help your child practice her counting as she makes this fun and festive holiday decoration!

Pfeffernusse are spicy and sweet Christmas cookies from Germany. Make a batch of traditional pfeffernusse this holiday season.

Got a kid who loves fashion? Help her develop her own unique style with this tie-dye project using natural dyes.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

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.

Determine the relationship between the speed of a sound and the temperature of the air it passes through.