First Grade Science Experiments (Page 137)

Battling Stains with Bleach

STEM Activity

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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

Be Seen After Dark—What Clothes Keep You Safe?

Science Fair Project Idea

Scientific Method

Did you know that the most likely time to be struck and killed by a car in the United States is at dusk, dawn, or at night? In 2014, 3 out of every 4 pedestrian fatalities happened in these types of poor light conditions. Is there something you could do to decrease the chances you, your friends, and your family members are safer when walking or biking at night? Do you think the types of clothes that you wear could make a difference in how visible you are to drivers? Explore the science of… Read more

Beaches and Sand Science Projects

Blog Post

Combine fun in the sand with hands-on science experiments and activities to learn more about beaches, sand, and preventing ocean pollution. STEM Experiments to Learn More About Beaches and Sand Heading to a local beach can be lots of fun. Whether you enjoy walking on the firm sand by the water's edge or playing in softer sand, beaches have plenty of sand to go around. But where does sand come from? What happens to sand when the tides move in and out?… 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

Biodiversity Survey

Science Fair Project Idea

Scientific Method

Survey your area to find out which species of plants and animals live there. You might be surprised to find out that something you grew up thinking was very common, is actually quite unique! For example, if you live in the great plains, then you may think that prairie dogs are a nuisance or a pest. Actually, some species of prairie dogs are only found here, and have a very important role for short and tall grass prairie ecosystems. The prairie dogs are an important part of the food-chain, and… Read more

Bird Science: Weekly Science Project Idea and Home Science Activity Spotlight

Blog Post

In this week's spotlight: a pair of zoology science projects that encourage families and students to use their observation skills to learn more about birds. What can you deduce about a bird's lifestyle or habitat by looking at its feet? More than you might think! Both the independent science project and the family science version guide students in an engaging bird feet scavenger hunt. The closer you look, the better, so pack a picnic lunch and head to a nearby park or… Read more

Bits, Bytes, and Bases: Write a JavaScript Binary/Decimal/Hexadecimal Converter

Science Fair Project Idea

Scientific Method

This is a challenging first computer science project. You'll learn the basics of how digital devices can represent numbers using only 0's and 1's, and you'll write a JavaScript program to convert numbers between binary, decimal and hexadecimal notation. Read more

Bones and Calcium

Science Fair Project Idea

Scientific Method

Why is your grandmother always wondering if you are drinking enough milk? Our bones are made out of calcium, a mineral found in milk, and drinking milk can lead to strong healthy bones. What about other animals? What are their bones made of? What kind of bones do they have? Are there animals without bones? Are endoskeletons and exoskeletons made out of the same materials? Read more

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