High School Science Experiments (Page 184)

Cha-cha-cha by Latitude

Science Fair Project Idea

Scientific Method

You probably know that where you live on Earth affects your weather. If you live in a far northern or far southern latitude, you experience colder temperatures than people who live near the equator at latitudes close to zero. Your latitude on Earth affects many aspects of your culture, like how you dress, what kind of house you live in, what foods you eat, and even how your day is structured: what time you go to school, to dinner, and to sleep. Some cities at latitudes closer to the equator,… Read more

Change the Size of a Shadow!

STEM Activity

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Halloween is almost here and behind every corner there seems to lurk a spooky shadow! Luckily, this is all they really are—just shadows that are part of scary decorations set up to give you a thrill while trick-or-treating. But where do these shadows come from, and how can some of them be so huge? Do this activity and find out how to generate the scariest and largest shadow of all! Read more

Clean Water and Aquifer Science

Blog Post

Is rainwater that seeps into the ground and passes through layers of soil clean or dirty? In this week's family science spotlight, kids explore how the passage of water through underground layers can result in storages of groundwater that are surprisingly clean! Above: students can explore aquifers and filtration with simulated "dirty water" and model collection bins. Natural Water Filtering In this week's family-friendly science activity, students experiment to see how the process of… Read more

Clever Contraptions (Awesome Summer Science Experiments)

Blog Post

Check in each week at Science Buddies this summer for our Awesome Summer Science Experiments series! Each week, we'll highlight a few activities for awesome science and engineering kids can do at home. We've got a whole summer of fun STEM themes lined up for kids of all ages — for free. This week: awesome summer science experiments for crazy, clever contraptions kids can build and put to use. Awesome Clever Contraptions The activities in Week… Read more

Collide Head On with this Toy

STEM Activity

Did it ever occur to you that tennis, bowling, Newton’s cradle, and cars bumping into each other all revolve around collisions? It is fascinating how a few rules of physics can predict the outcome of these collisions. You can discover these rules yourself with a fun homemade toy. Do the activity, play with the toys you make and be one step closer to understanding what happens when you shoot a marble into another! Read more

Colorful Candy Science

Blog Post

Too much candy after Halloween? Put some of your trick-or-treat candy to scientific use with a hands-on project. This crowd-pleasing STEM activity turns colorful candies into a visual treat for students and a lesson in molecular diffusion. Candy Science: Just Add Water! Hands-on K-12 STEM. www.sciencebuddies.org Simple Candy STEM All you need to do this science activity is colorful candies, a small bowl (or plate), and water. Line the candies up in a… Read more

Colorful Walking Water Science Activity

Blog Post

This simple STEM activity turns capillary action and "siphoning" into an exciting rainbow-colored demonstration! Try this colorful "Walking Water" science activity How can you move water from one cup to another without pouring it? A simple hands-on experiment with a series of clear cups and paper towels lets students explore this question. When they see water move up and then down the paper towels, there will be plenty of opportunity for… Read more

Comparing Cranberry Condiments

STEM Activity

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Does your family have jellied cranberry sauce with Thanksgiving dinner? Jellied cranberries are thick and retain the shape of the mold in which they are placed, which might mean a turkey-shaped mold or even the shape of the can if you use a canned version. Taking a bite of jiggly jellied cranberries can be a fun addition to a delicious meal, but cranberries can also be served as a liquid-like sauce. Both versions use the same ingredients, so what makes one turn into a gelatin while the other… Read more

Compelling Compositions: Rule of Thirds & Golden Mean

STEM Activity

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Do you like to preserve a moment with a photo, tell a story with pictures? It can feel very rewarding to capture an experience in a compelling photo; it can also be disappointing when the photo does not convey what you were seeing or what you had in mind. You might wonder what makes some photos mesmerizing and gripping, while others look dull, empty, or unappealing. If you could only create those perfectly balanced compositions. Maybe it is easier than you think. Some easy composition rules,… Read more

Compost Creativity: Try Various Methods and Test Soil Fertility

Science Fair Project Idea

Scientific Method

Make your own fertile soil using kitchen scraps, manure, leaves, grass clippings, and other compostable materials. Which materials make the best compost? How does the amount of nitrogen change the rate at which the compost forms? How does a 'hot' compost pile compare to a 'cold' compost pile, or how does traditional composting compare to worm composting, or vermiculture? Figure 1. Different composting methods yield different soils. In this picture, the soil on… Read more

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