High School Science Experiments (Page 178)

Making a Sugar Thermometer

STEM Activity

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Bakers (and those who help bakers!) know that at some point in every baking recipe, the instructions will tell you to preheat your oven to a certain temperature. But if you’ve ever tried to bake cookies and they come out flat, or take too long, it’s possible that your oven is to blame. You might set your oven to 350°F, but how do you know that the inside of your oven actually reaches that temperature? You could use a thermometer…. or you could use sugar! Because we know… Read more

Making Ice Cream: Doing Fun Science at Home during School Closures (Activity #19)

Blog Post

Follow along with a Science Buddies parent who is using family STEM activities to keep her kids learning at home during the COVID-19 school shutdown. New posts every Monday, Wednesday, and Friday. Today's adventure... making ice cream in a bag. The Science of Treats What are you doing to treat yourself these days? A glance at Instagram and Facebook suggests many of us are doubling down on comfort food and delicious treats. I know that's true at my… Read more

Making Math with Dough: Weekly Science Activity

Blog Post

In this week's spotlight: a math activity that turns playing with dough into an exploration of geometry. If you make a cube out of dough, you can measure the sides of the 3D object and multiple the length by width by height to find out the volume of the shape. If you gently and uniformly flatten (or squish) the object, you transform your original shape into a new shape with new dimensions. Does the volume change? In this family-friendly math activity, kids can have geometry fun with… Read more

Making Patterns with Rubik's Cube

Science Fair Project Idea

Scientific Method

This project challenges you to figure out how to make geometric patterns with Rubik's Cube. Leaving your cube in one of these positions makes it much more tempting to pick it up and 'fix' it. Can you figure out how to make a checkerboard, or a cube-within-a-cube? Can you make only the center piece a different color from the rest? Can you figure out how to solve the cube from these positions? Read more

Manipulating Sound Files

Science Fair Project Idea

Scientific Method

Learn how to edit sound files so that you can manipulate the recorded sound mathematically. You can either find specialized audio editing software or do background research to teach yourself about sound file structure so that you can write your own simple program to manipulate sound files. Try arithmetic operations on the sound values (e.g., adding or subtracting a constant, multiplying or dividing by a constant). How do these operations alter the sound? Try other mathematical operations:… Read more

Maple Syrup Candy

STEM Activity

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Have you ever cooked up homemade candy, maybe from chocolate or table sugar? Maple syrup is not only deliciously gooey and great on breakfast foods like pancakes and waffles—you can also turn it into maple candies with an amazing range of textures! It can be made into sticky maple taffy, or hard, molded maple sugar candy. In this science activity, you will investigate how the temperature of heated maple syrup affects what types of candies can be made from it. Read more

Mapping Magnetic Fields

Science Fair Project Idea

Scientific Method

You probably know that you can use iron filings to reveal the magnetic field produced by a strong magnet. If you sandwich the iron filings between pieces of waxed paper, you can make a permanent record of your magnetic experiments (Gardner, 2004, 66). Cover the wax paper sandwich with a layer of brown paper (from a roll, or cut open a paper shopping bag), and then (with an adult's help) use a hot, dry iron to seal the waxed paper together. You will have to experiment a little with your iron… Read more

Mapping Troposphere Ozone Levels Over Time

Science Fair Project Idea

Scientific Method

Ozone in the stratosphere protects the earth by absorbing harmful ultraviolet radiation from the sun. However, when ozone occurs in the troposphere, i.e., the air that we breathe, it is harmful to health. In this project you can use data from EPA monitoring stations to analyze the weather/climate conditions that can lead to harmful ozone levels. Read more

Marble Race – In Liquid!

STEM Activity

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Have you ever tried to squeeze honey or syrup out of a bottle at breakfast on a cold winter morning? Do you notice that it's harder to do that than on a hot summer day? As the liquid gets colder, its viscosity, or resistance to flow, increases. Viscosity is a properly of liquids that can be hugely important in wildly different applications – from how the syrup flows out of your bottle, to how blood flows through the human body, to how lava flows out of a volcano. In this project you will… Read more

Marinade Science: Weekly Science Activity

Blog Post

In this week's spotlight: a food sciences family science experiment that investigates the way different ingredients make a difference in how well a marinade sticks to food. In this science activity, students simulate the process of soaking a food in a marinade by doing a controlled study with tofu, food dye, and four different ingredients that might be found in a marinade recipe. Setting up a set of standards for what the tofu looks like when soaked in different levels of dye concentration… Read more

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