First Grade Science Experiments (Page 161)

Be Seen In the Dark

STEM Activity

Being outside in the evening can be relaxing as well as exciting and fun, but it could also be dangerous. Did you know that in 2014, on average, 13 pedestrians died on American roads every day and three out of every four pedestrian fatalities happened in poor light conditions, such as dusk, dawn, or at night? When considering these worrisome numbers, do you think the types of clothes worn could make a difference in how visible pedestrians are to drivers? If so, what should you wear: bright… 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

Big Ears Science

Blog Post

Experiment with different styles of ears to see how the size and shape of ears changes what you may be able to hear in this family STEM activity. Sometimes exploring science with kids means being silly and putting on enormous animal ears as you ask and investigate serious science, technology, engineering, and math questions like can you hear better with bigger ears? When you think about ears and how human ears are different from animal ears, what animal ears immediately come to… 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

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

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

Boys and Girls All Around the Town

Science Fair Project Idea

Scientific Method

Do you ever say you like to go somewhere, and your friend says, "Yuck, that's for girls!" or "Ewww, that's for boys!" Do this experiment to find out if there are some places that girls like to go more than boys, or vice versa. Read more

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