4Kids.org
Week of July 22, 2012

Games
Cool Spots
Back Issues
Visit the featured websites to find the answers.

What is a site survey for?
To take inventory of the artifacts
To help archeologists learn about the area
To help archeologists narrow down where to start

What is sound?
A form of electricity
A force
A form of energy

What are the two kinds of energy?
Potential and Kinetic
Mechanical and Electric
Chemical and Magnetic

Hidden Treasures

arrowheadsIf you like digging in the dirt, finding clues and solving mysteries, then Archeology for Kids, cr.nps.gov/
archeology/public/kids
, is the place for you! Learn who makes up a field crew in Who Are the Archeologists? Some specialize in animals, others in underwater excavation, historical facts or artifact preservation. Visit the Archeology Lab to see how treasures are preserved. Once you’ve learned about what archeologists do, Try It! Survey a park or your backyard in Read the Landscape. Explore activities with the NPS Webrangers in Online Archeology.

 
Nominate a cool website at:
www.4Kids.org/nominations

Sonic Safety

rockstarFind out how to protect your hearing with games and activities at It’s a Noisy Planet, www.noisyplanet.
nidcd.nih.gov/tweens
. You’ll be shocked to hear the loud noises tractors, pigs and other animals make in Keeping Noise Down on the Farm. You may wonder what your friends will say if you wear ear protection. Get the Facts will teach you stylin’ ways to protect your ears and what to say to your friends, because it’s earplugs now or hearing aids later! Did you know a mouse can snore as loud as a human? Find out more in Noise in the News.


Powering Our World

wind farmLearn about energy in a fun way at Energy Kids, eia.gov/kids. What is Energy? outlines energy basics and has some nifty calculators to help you convert one energy form to another. You can save trees and water from home by recycling one item; Using & Saving Energy tells you how. Can you guess which famous scientist invented the temperature scale we use today? History of Energy features famous people and their discoveries. Games & Activities will entertain you with riddles, puzzles and science fair experiments. Read about Energy Ant’s adventures in Field Trips.

Speak Out

Do you wear earplugs to
protect your hearing?

Speak Out Here!

Dear Amy: Why does rain form into drops? — Angela, Kuwait

Dear Angela: Water is everywhere! It covers about 70 percent of the Earth’s surface, and it’s even in the air you breathe. Although it’s a very common substance, water has many unique properties, including a high surface
tension. This means that molecules of water are “sticky” and like to cling together, causing them to clump into droplets rather than spread out. Want to see water’s surface tension in action? Predict how many drops of water will fit on a penny and then do the experiment at PBS Kids Zoom, pbskids.org/zoom/activities/sci/dropsonpennies.html, to find out if your guess was right.

Water vapor in the atmosphere condenses into liquid droplets to form clouds. When enough droplets combine, they can become heavy enough to fall back to the Earth’s surface as rain, sleet or other forms of precipitation. Did you know that raindrops aren’t shaped like tears? Small raindrops are spherical, but larger raindrops flatten at the bottom due to air pressure pushing on them as they fall. To learn more about water science and the water cycle, visit ga.water.usgs.gov/edu.

—Amy

Ask Amy a Question

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