Innholdsfortegnelse for July/August 2018 i Click Science and Discovery Magazine for Preschoolers and Young Children

Which things will float and which will sink? You might think that big, heavy things sink, and smaller, lighter ones float. And if you make the orange smaller and lighter by taking off its peel, what happens? Big things can float when they are less dense than water. That means they weigh less than water in the exact same size and shape would weigh. A paper clip is made of metal. Metal is denser than water, so it sinks. But what about big boats? They are made of metal. Why don’t they sink? Whenever you put an object in water, it pushes the water away to make room for itself. See for yourself. Fill a small bowl all the way to the top with water. Now put an orange into…

Archie the Goat stopped short at a moat. How could he get across? He measured and mapped. He doodled and drew. He sketched and scribbled and scrawled. “Aha! To cross the moat,” pronounced the goat, “we build a contraption to float!” “Or,” said Skinny the Hen, “we could just take the drawbridge.” “Bah,” said Archie, “drawbridge, straw-bridge. This is no time for a drawbridge. This is a time for science!” “Right!” said the hen. “Science!” The hen and the goat, alongside the moat, took stock of their cart of supplies. “A barrel might float,” mused the goat. “We begin with a barrel of buttermilk!” The hen and the goat, alongside the moat, hammered and nailed, clanged and banged. They wired and tied, and built the SS Buttermilk. The barrel and…

1. Cut out the large colored rectangle. 2. Fold the paper in half, putting the long sides together—blue inside, white outside. 3. Open the paper and fold it in half, putting the short blue sides together. 4. Fold the top corners of the folded side into the middle so that the corners meet. Flatten the folds. 5. Fold up one bottom edge. Flatten the fold. Turn it over and do the same on the other side. You now have a hat. 6. Grasp the middle of each side of the hat with your thumbs and forefingers as shown. Your thumbs should be on the inside of the hat. Pull out gently until you have a diamond. Flatten the folds. 7. Fold up one bottom point of the diamond so that…

What a relief that Archie’s barrel finally floated! And thanks to Archimedes, a famous Greek scientist (and Archie’s namesake!), we know why. Archimedes found that an object placed in water will displace, or push away, some of that water. The water pushes back, and just how hard it pushes is determined by the amount of water displaced. So when the barrel was full (the SS Buttermilk), it sank. The barrel pushed away water equal to its own size. But compared to the heavy barrel, this amount of water was not enough to keep the ship afloat. And when the barrel was empty (the SS Empty), it did float, but was too light to push away nearly any water and made a terribly unstable ship. But when the barrel was half…

Email your child’s photo to click@cricketmedia.com, or send to: Click’s Your Turn! 70 E. Lake Street, Suite 800, Chicago, IL 60601. Photos will not be returned. You, the parent or legal guardian, must email or sign the submission and include a statement confirming Cricket Media may publish the image in print and online, and that you are authorized to provide permission.…