Would you like to make Mr. Wizard’s “automatic fountain”? Put a teaspoonful of detergent !the kind that foams) in hot water in a tall jar. Put a lump of dry ice inside the jar. A cloud of foam rises to the top of the jar spills over and creates an amazing fountain that bubbles automatically for a long time. You can obtain the dry ice from an ice cream man,...Continue reading »
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Try this experiment. Place a long, thin, wide stick flat on the table, with about 8 inches sticking out over the table edge. The kind of wood used in fruit crates is excellent for this experiment. Cover the part of the stick on the table with two sheets of large size newspaper. Smooth out the paper. Now hit the end of the stick hard with another stick, or a hammer....Continue reading »
Water Tricks Fill a glass to the brim with water. Place it on a level surface. Drop nails, clips, washers and other small metal objects into the glass of water, one at a time. You would expect some water to spill out every time an object falls in. But nothing of the kind happens. Instead, the water rises higher and higher above the top of the glass. You will be amazed...Continue reading »
“From Trade To Territory, The Company Establishes Power”History Notes of Class VIII By Manju Bala, TGT.
Download Power Point Presentation Slide Show of “From Trade To Territory, The Company Establishes Power”History Notes of Class VIII By Manju Bala, TGT. Download:- mcm bags for sale mulberry uk sale mcm backpacks mulberry outlet store basket jordan pas cher basket jordan pas cher cheap timberland boots mcm purses mcm bookbags mulberry outlet Related posts: No related posts.Continue reading »
OUR SENSES Roll up a piece of paper to make a long tube. Sight through the tube at an object. Place your hand alongside the tube as shown in the drawing. You see a big, clean hole right in the middle of your hand! Why do your eyes fool you? To answer this question it will be necessary to learn something about your sense of sight. Sight In many ways...Continue reading »
Plants and minerals Buy some mineral plant food and make up a solution following the directions on the package. Grow two radish plants in clean sand in different containers. Give one water with minerals. Give the other only water. In a few weeks the one without minerals looks sickly and weak. In a few more weeks it may die. You already know that a plant needs water and carbon dioxide to...Continue reading »
Roll a blotter around the inside of a glass. Fasten it with gummed tape. Place several radish seeds near the rim, between the blotter and the glass. Keep the water level in the glass just below the radish seeds for a few days. After a few days the seeds sprout. Tiny roots start downward and small stems and leaves go upward. As soon as the leaves of one radish plant...Continue reading »