Kindergarten Science Experiments (Page 183)

Bat Detector: Listen to the Secret Sounds of Bats

Science Fair Project Idea

Scientific Method

Do you have bats in your neighborhood? Have you heard them "whoosh" by you, but not been able to see them? In this science fair project, you will be able to detect flying bats by listening in on the ultrasonic signals they produce to locate objects in their environment. The bat detector is a useful and fun tool for studying the biology of this nocturnal flying mammal. Read more

Bath Bombs Chemistry: Family Science Activity Spotlight

Blog Post

In this week's spotlight: a family science experiment that promises fizzy fun in the tub (or in a big bucket of hot water). Bath bombs are easy to make at home. You can mix up your own using your choice of additives with the core ingredients. But what makes a bath bomb "fizz" when it hits the water? In this science activity, students experiment with the recipe for making a bath bomb and investigate the role of corn starch and citric acid in the process. What is the… Read more

Battling Stains with Bleach

STEM Activity

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6 reviews

Have you ever wondered why your dirty clothes come out of the washing machine white and clean? What makes all the stains disappear? The answer to that question is bleach - an ingredient that is present in most laundry detergents. Bleach is responsible for the whitening effect that occurs during washing and removes most of the stains. But how does it work? In this science activity you will find out by making food color disappear with the power of bleach! Read more

Beats

Science Fair Project Idea

Scientific Method

Beats are a pattern of oscillating sound intensity (i.e., the volume of the pattern grows and fades with a regular cycle). They occur when two tones of almost equal frequency interfere. People can perceive beat frequencies below about 7 Hz. Figure out how to create sound files to play pure tones on your computer. Create files with a pure tone of one frequency in the left channel, and a pure tone of a different frequency in the right channel. Systematically explore different frequency… Read more

Bend or Break? Candy Science

Blog Post

What happens when you bend your favorite candy in half? Does it break? Does it bend? Does it snap back into shape? In this week's materials science-themed family science activity, students put candy to a "bend it" test to explore how some materials are more flexible than others. While it may be obvious that some candy bars will break (or snap in half) when bent while other more "gummy" candies bend, changing the temperature of the candies gives this experiment an extra… Read more

Best Wand for Big Bubbles

STEM Activity

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Have you ever tried to blow a bubble, and no matter how hard you try, the bubble just will not form? Why does this happen? Why do bubbles form at all, and why is it harder to blow bubbles sometimes? In this activity, we will explore the limits of how big our bubbles can get! Read more

Binocular Vision Eye Science

Blog Post

In this family STEM activity, put your eyes to the test... alone and as a working unit! How do your eyes work together to help you see? Eye Science Your eyes help you see what is in front of you, but have you ever thought about how your eyes work together (with your brain) to make sense of what you see? We have two eyes, but together our brain processes a single image. How does this work? When you look through a pair of binoculars, you place each eye in front of one of the eye pieces.… Read more

Bird-Spotting Science: Predicting a Bird's Lifestyle Based on its Feet

STEM Activity

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Have you ever wondered how animals can survive in all sorts of extreme environments, from a polar bear that’s out and about when it’s -40°F and a desert iguana finding food as the temperature rises to 110°F, to a deep sea anglerfish living thousands of feet down in the sea? How do they do it? The answer is adaptations! Their bodies have special features that allow them to live in those environments. In this activity, you’ll investigate what the… Read more

Bit Depth, Colors and Digital Photos

Science Fair Project Idea

Scientific Method

How many bits of information are in a digital photo? It depends on how many possible colors there are. Learn how to choose the right number of colors and bits to post your photo on the web or send it to your best friend. Read more

Build a Differential from K'Nex®

STEM Activity

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What in the world is a differential and what does it do? A differential is a mechanism that helps cars go around turns without the wheels slipping. In this activity you will build your own working model differential from a building toy like K'Nex®! Read more

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