|Try this! You can make a model of the way our Earth's environment is affected by natural and man-made disasters. You will need a paper plate (wax coated works best), one fourth cup whole milk, food coloring (red, blue, green, and yellow), and dishwashing soap, preferably clear or light colored.|
- Mark the four directions (North, South, East, and West) on the outer edge of your paper plate. Consider where the major continents would be in relation to the directions.
- Pour the milk into the plate, this represents the atmosphere surrounding the Earth.
- Place several drops of each color of food coloring randomly in the milk. Each drop will represent a different global disaster. For example, the red drops could represent a forest fire, green—volcanoes, and yellow—pollution due to car exhaust.
- Look at the colors on your plate. Are they spreading and running into each other? Is each "disaster" isolated in its own area?
- Now, put several squirts of dishwashing liquid randomly in the plate. This represents energy from the sun.
- Observe. What happens to the disasters represented by the colors?
Weather and ocean currents all are caused by heating and cooling of different parts of the earth's surfaces. Did you know that the greatest risk from sun exposure is between 10:00 in the morning and 4:00 in the afternoon?
|Make a Sundial!|
|You can use the sun to tell time by making a sundial. You will need a shoe box, a paper plate, tape, scissors, and a popsicle stick or pencil. |