Article: Electric animals.

Article: Weekly lab.(how to make a replica of an ancient ...
Science Weekly;  April 12, 1995 ;     574 words ...Throughout history, time has been measured using different materials and methods. In this lab, you will be making a timekeeper called a clepsydra (klep se drah) - an ancient Greek drip clock. You need: 4 to 6 waxed paper cups, paper fasteners, a large cardboard box, a bowl, water, a pencil (nail or

Article: Weekly lab.(how to perform an experiment on weight ...
Science Weekly;  March 29, 1995 ;     700+ words ...Does weight make a difference in balancing? You need: pencil, ruler, 10 pennies, a partner Step 1: Slowly and carefully balance the ruler on your pencil. Write down the number where your ruler balances. This is your point of balance. Step 2: Have your partner place one penny about 10 cm (4 in.) to

Article: Weekly lab.(how to use a paper strip to measure ...
Science Weekly;  January 5, 1995 ;     493 words ...Cats have quick reflexes and fast reaction time. How fast are yours? Can they be improved? You need: ruler, paper, colored pencils, scissors, a partner Step 1: Trace the outline of your ruler onto the paper. Cut it out. Step 2: Draw lines dividing the strip into 4 equal parts. Color each 1/4 a

Article: Weekly lab.(Brief Article)
Science Weekly;  January 17, 2005 ;     694 words ...Adult Supervision Required wind bane Build a weather station! A. First: build a wind vane to show wind direction. (You need: a cereal box, a pencil, scissors, a pen cap, glue, tape, markers, a wire coat hanger) Step 1: Flatten the cereal box. Draw the top of a wind vane, with an arrow and a bird

Article: Weekly Lab(making a camera obscura from a juice ...
Science Weekly;  November 1, 1995 ;     506 words ...Light travels into a camera lens the same way it travels into the lens of our eyes. It moves in a straight line. This means that the images our brains (and the camera) receive are upside-down! Luckily, your brain reverses these images. This lab will show you what a camera and your eyes really see.

Article: Weekly lab.(making stalactites and stalagmites with ...
Science Weekly;  October 16, 1997 ;     502 words ...Make your own stalactite and stalagmite! You need: a 40 cm (about 16 in.) piece of yarn (wool yam works well), 2 paper clips, 2 baby food jars (or clear plastic cups), a spoon, warm water, Epsom salts, a tablespoon, a small plastic plate Step 1: Put 5 tablespoons of Epsom salts in each jar. Step 2:

Article: Weekly lab.(the colors that make up black)
Science Weekly;  February 12, 1998 ;     474 words ...Black ink is made by mixing many colors. What colors are in your marker ink? You need: 3 different brands of black water-based markers or felt-tipped pens, 3 cups with a tiny bit of water in them, 3 pencils or rubber bands, 3 strips of coffee filter or strips of paper towel (about 3 cm by 15 cm)