Kindergarten Science Experiments (Page 200)

Liver Stinks!

STEM Activity

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Your liver is important for cleaning up any potentially dangerous substances you consume. But how does it do it?—With a little help from some complex chemistry. Within your liver, as within every tissue in the body, many chemical reactions occur. Often these reactions require "help" to happen at a faster speed, and this can be supplied by enzymes—tiny types of proteins. The liver uses specialized enzymes to help it break down toxic substances and make them safer for the… Read more

Lunar Crater Counting

Science Fair Project Idea

Scientific Method

Get good photographs of the Moon showing lots of craters and count how many craters you find in a range of diameter classes. One useful source is the Consolidated Lunar Atlas (Kuiper et al, 2006). Make a histogram that shows the distribution of diameters. Most of these craters were formed during the first billion years of the Moon's formation, but you should confirm that this is true for the the Moon areas you've selected in your photographs by doing background research. Is cratering uniform… Read more

Mac and Cheese Science: What Makes a Thick Sauce?

STEM Activity

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There’s nothing like your favorite comfort food after a long day, right? Maybe it’s beef stew or a really great salad, or many people’s favorite, macaroni and cheese. The sauce has got to be just the right texture, though, or your noodles are either swimming in the sauce, or just one big glob! So how can you get just the right texture? Get ready to invite some friends over to taste-test. With this science activity, you can be a scientist, a cook and a crowd pleaser all at the… Read more

Macro for Micro?

Science Fair Project Idea

Scientific Method

If the prefix "macro" means large and "micro" means small, then why will the macro setting of a digital camera help take a better picture of a small object? Do this experiment and get the big picture. Read more

Magic Squares

Science Fair Project Idea

Scientific Method

A magic square is an arrangement of numbers from 1 to n2 in an n x n matrix. In a magic square each number occurs exactly once such that the sum of the entries of any row, column, or main diagonal is the same. You can make several magic squares and investigate the different properties of the square. Can you make an algorithm for constructing a Magic Square? Can you show that the sum of the entries of any row, column, or main diagonal must be n(n2+1)/2? Are there any other hidden properties of a… Read more

Make Boba for Bubble Tea

STEM Activity

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Ever wondered how the boba in bubble tea are made? Bubble tea or boba tea is a sweetened drink made of flavored tea, milk and bubbles. The translucent, squishy bubbles called boba are remarkably easy to make. You only need three ingredients: tapioca flour, water, and brown sugar. The skill lays in one little detail: the temperature of the water used. Curious? Try it out and make bubble tea from scratch! Read more

Make Some New Year's Noise with Science Projects!

Blog Post

Turn Up the Volume with this Quartet of Noisemaker Science Activities! Whether you are looking for last-minute ideas for the science classroom before winter break or suggesting fun DIY science ideas for students to explore at home, these hands-on science activities make learning about sound fun—and noisy! With New Year's celebrations coming, these short science projects are a great way for students to explore the physics of sound and make something they can use,… Read more

Make Your Own Sorting Machine

Blog Post

Creative DIY STEM projects like making a sorting machine help students understand steps of the engineering design process. Plus, hands-on science activities like this are lots of fun in the classroom and give kids a practical challenge to solve. Have you ever used a machine that you put a handful of coins into, and the coins fall into collectors based on the type of coin? This kind of machine is fun to use and makes it easy to sort your money. The… 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

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

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