Thermometers are how we measure temperature, and we've all heard the terms "centigrade" and "Fahrenheit" tossed around, but what do they really mean?

Add these fun chocolate Groundhog Day cupcakes to your holiday desert recipe repertoire! They're fun to make with your kids and a delicious winter snack.

Pumpkin carving party activities are great for a pre-Halloween party. Try pumpkin carving party activities, including jack-o'-lantern ideas and fall recipes.

Observe if dissolved aspirin will help plants grow healthier and faster in this science fair project idea.

How do cold packs work? Explore endothermic reactions by comparing the temperature change that results from various chemicals added to water to find out!

Science fair project that tests the correlation between outdoor temperature or weather conditions and the number of visible stars at night.

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

Determine if âdouble dippingâ chips really spreads more germs than dipping only once per chip.

In this science fair project, students will use methylene blue to study the presence of aerobic bacteria in milk.

These cute holly-shaped hair clips are a breeze to make for holiday celebrations. They make a great party activity, too!

Science fair project that creates fog using bottles of hot and cold water.

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.

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

Science fair project that tests how heat affects the chemical reaction between a seltzer tablet and a glass of water.

Use an Elihu Thomson apparatus, also known as a ring launcher, to learn about electromagnetism concepts and the properties of various metals.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

Teach your child what a sugar plum is with this easy recipe that gets your child to chop, mix, and roll his way to a delicious treat.

Make pickled carrots at home! Here's a fun activity to get your child in the kitchen and make something special with no fuss or muss.

Is there more air particulate matter in an urban or rural environment? Test your knowledge with this science fair project.

A great science fair project on solar oven design that helps kids learn about solar power and solar heating.

Check out this cool science project idea to explore how temperature creates annual rhythms that govern plant growth.

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

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

Use this great no-bake recipe to save energy and keep cool.

This science fair project idea quantifies the effect of weather- in this case temperature and humidity- on musical instruments.

Make this easy recipe for Halloween, featuring white chocolate and pretzels, for a crispy, creepy treat!

Science fair project that studies how perfumes are made in order to determine how we can capture a scent.

This science fair project idea examines reptile behavior and to determine whether reptiles are more active during warmer temperatures.