High School Science Experiments (Page 160)

Fresh Whipped Cream That Lasts

Science Fair Project Idea

Scientific Method

Fresh whipped cream is the final touch for many delectable desserts. One issue with fresh whipped cream is that it has to be used soon after it is made, especially if it is at room temperature, or it starts to collapse into goo. This is a problem for its use in frostings or inside pastries as filler. Whipped cream can be stabilized by adding unflavored gelatin. Stabilized whipped cream can be used at room temperature and it has a much longer life. But how much gelatin is just right? Try… Read more

Froggy Forecasting: How Frog Health Predicts Pond Health

Science Fair Project Idea

Scientific Method

Have you ever heard the expression "a canary in a coal mine"? In the 1900's and earlier, coal miners brought canaries with them into the mines to act as early warning signals. The canaries were very sensitive to low levels of dangerous gases, so if the birds stopped singing, or got sick, then the miners knew to leave immediately, even if they felt fine. As it turns out, our froggy friends are also very helpful at signaling problems, not in mines, but in and around bodies of water. Try this… Read more

From Sauce to Solid: The Science of Cranberry Condiments

Science Fair Project Idea

Scientific Method

"Slurp...plop!" Recognize that sound? You might if your family usually serves jellied cranberries for the holidays. Jellied cranberries are thick, like gelatin, and retain the shape of the mold in which it was placed, which might mean Aunt Sue's turkey mold or even the shape of the can if you buy one of the popular canned versions. Taking a bite of wiggly jellied cranberries can be a fun addition to a delicious meal, but cranberries can also be served as a sauce. Both versions use the same… Read more

From Your John to the School Lawn: Is Recycled Water Really Safe?

Science Fair Project Idea

Scientific Method

Reclaimed (treated) wastewater can be used for many purposes, including landscape watering and freeing up valuable fresh water for other purposes (like drinking water). It's a great way to conserve water, but is it really safe? This science fair project is designed to find out. Read more

Fruit and Gelatin Science: Weekly Science Project Idea and Home Science Activity Spotlight

Blog Post

In this week's spotlight: a pair of science projects from the kitchen. Is a gelatin-based fruit salad in your recipe book of family favorites? What fruit do you add? Will any fruit work? Put it to the test with this week's hands-on science exploration and investigate what the enzymes in certain fruits have to do with whether or not a gelatin will solidify properly when a fruit is added. Which Fruits Can Ruin Your Gelatin Dessert? (full Science Buddies Project Idea) Solidifying… Read more

Fruit Juice Distillation

Blog Post

Explore the process of distillation with a kitchen chemistry activity using fruit juice. What role does boiling the juice play in the process? Mixing water (a solvent) and sugar (a solute) together will give you a solution, a homogenous mixture in which the solute has completely dissolved. You can reverse the process and separate the solution back into its parts using distillation. (Note: there are some solutions for which distillation does not work!) In this week's… Read more

Fruit Ripening

Science Fair Project Idea

Scientific Method

Fruit is a strategy some plants use to attract animals to disperse seeds. The animals eat the fruit and disperse the seeds through the digestive system. To attract animals, fruit needs to ripen and develop an odor that acts as an attractant. How much more successful are ripe fruits at attracting animals? Try setting out an over and under ripe piece of fruit, and compare how many many insects are attracted to each fruit. How does ripening occur? You can do an experiment using a very ripe… Read more

Fun or Frustrating?

Science Fair Project Idea

Scientific Method

Is winning correlated with fun? Pick a video game which has different difficulty settings, for example easy versus hard mode. Ask volunteers who have never played the game before to try it out. Some of them should use the easy mode and others should use the hard mode, this will ensure that you have a range in the amount of winning and losing among your volunteers. Keep track of how much each player is winning. Survey the volunteers to find out if they like the game. Do people who win more like… Read more

Fun with Fireworks Science: When Chemicals Burn

Blog Post

Fireworks displays are fun to watch and a tradition accompanying many community celebrations. With a simple family science activity, the mystery behind the dazzling night-time sky show can be explored. This is colorful hands-on summer science—minus the "boom" of fireworks explosions! What makes all the great colors you see during a fireworks display? Experiment with a fun backyard family science activity to see firsthand how different chemicals produce different colors when… Read more

Fungi Spores

Science Fair Project Idea

Scientific Method

Mushrooms are not plants, but are fungi. Fungi include mushrooms, molds, and lichen. They do not produce seeds to reproduce like some plants. Fungi produce spores, like more primitive plants do. The spores of a mushroom are contained in the tiny folds around the stem underneath the mushroom cap. Different species of mushrooms have different types of spores, with different colors and different patterns of folds. You can make mushroom prints by removing the stem from a mushroom and placing the… Read more

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