Showing Results for add and subtract

Determine whether a hot liquid cools off faster when liquid is added before or after a two minute wait.

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.

Work on measurement by sliding cards along a table with your second grader in this fun game. Use centimeters or inches, add up your totals, and see who's won!

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

Demonstrate the capillary function in plants by adding food coloring to glasses of water. Slice stalks of celery and leafy tops. Compare color of leaves

Chlorine and chloramine are added to our tap water to kill harmful microorganisms. What is the best way to filter these disinfectants in your drinking water?

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

Will your liquid weigh less once you remove the fat from it? Find out in this science fair project idea.

This science fair project idea explores whether dry ice will cool a beverage faster than wet ice.

This science fair project investigates how temperature of a room affects the burn rate of a candle.

Check out this fun science fair project idea to explore fun facts about fruit juices and learn why do juices turn bad in the fridge.

If your Father's Day festivities include meeting up with extended family, why not put all the dads to the test with a chili cook-off?

Instead of loading up on mayonnaise based potato salad, your child can whip up something healthier: German potato salad!

Determine how salinity affects the circulation of warm and cold water. Note whether the warm water mixes or forms a layer with cold water.

Make this delicious warm apple bread for Hanukkah.

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

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

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

Transform your kitchen table into a winter wonderland with a cookie and cocoa party that looks freshly dusted with snow.

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.

This science fair project idea determines effective strategies to help students stay awake and attentive.

In this science fair project idea, kids make water dance on the surface of a hot pan with the Leidenfrost Effect.

Science fair project that cultivates slime mold and monitors the stages of its development.

This recipes is so easy your child gets to be master chef for this kitchen activity. He'll bake peanut butter banana oatmeal cookies that happen to be vegan!

The crust is fun for kids to mix and roll out, and the filling overflows with vitamin and anti-oxidant packed berries!

Your child can turn cookie dough into a big pile of colorful painted fall leaves ready for eating!

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

In this science fair project, students examine how temperature affects sugar transport within a plant.