Soil Does More Than Get You Dirty - Learning Center - Soil Electronics
Learning Center 4 Soil Electronics
worksheet (to record student's answers)
3 electronic game folders
3 battery-bulb systems
folder - to collect worksheets
Instructions for students
Each one take a folder, electric system (instructions for making on the back), a worksheet and a pencil.
Put your name on the worksheet.
Choose a question, touch one wire to the hole on the left and the second wire to the hole on the right that correctly answers the question. (The bulb lights up if your answer is correct.)
Write answers on worksheet.
If there is time, trade folders with someone else who is finished.
When you leave, put your papers in the folder.
Questions used on folders
In the 1930's what did wind-erosion cause? the Dust Bowl
What goes in when the sun shines but goes out when there's rain? Look for it on a clear day and you look in vain. the earthworm
Besides water what is the one other thing that can cause soil erosion? the wind
What is a sign of people-caused erosion? mud puddles under the swings
Wind erosion occurs in areas of high prevailing winds and low-annual rainfall. How can we prevent wind erosion? windbreaks
Soil erosion can do what to the price of food? increase it
Land slippage is similar to what? an avalanche
What can we make by using our grass cuttings after mowing the yard? a compost
What in soil does not pack well and has large grains? sand
Where does the wind cause a lot of soil erosion? dry areas
What soil particle group is soft and velvety? silt
What soil particle group is rough? sand
What soil particle group allows for good packing? clay
What soil particle group consist of twigs, leaves, and wood chips? humus
What in soil do plants and trees depend on for growth? nutrients
What can we compare a bomb to? a raindrop
What do we need to do to the soil? protect it
What is one problem we face with soil erosion? low-food production
What is erosion? a force that takes away or disrupts the soil
What happens to an earthworm when it rains? comes to the top
What type of soil erosion occurs on a steep slope? gully
What was the film that we found in the water after separating the soil particles? clay
What particle is in the type of soil that tends to make things dirty? humus
Where is wind erosion of greatest concern? prairies
Besides food production what other problem can soil erosion cause? washing out of roads
What should we do to our soil? conserve it
Where is soil? everywhere
Where can you find "clean" sand? beaches
Soil erosion can be reduced by doing what? planting
What type of soil is most likely to be taken first during soil erosion? the top soil
Directions for making battery, bulb, wire system
6-volt lantern battery
3 insulated wires with 1" stripped from each end
1 screw-in lantern bulb that can handle 6 volts (Radio Shack, Walmart, K-Mart, etc.)
1 screw-in type lamp base to hold bulb
3 folders - yellow, blue, and green
tape (cellophane, masking or mailing)
Mark and punch holes for 10 questions and 10 answers. Leave enough space between holes to write questions and answers beside each punched hole (see illustration at left).
Write questions and answers on the outside of the folder, mixing them so answers are not directly across from the corresponding question.
Turn folder over and on the backside of the folder front place aluminum foil strips from the question to the correct answer. Tape foil in place. Make sure foil completely covers holes. Individually, completely cover the entire foil strip with tape or circuit will not complete (see illustration below). As you add foil strips, turn folder over and test each strip with battery device, making sure answer and question match correctly. If light burns, circuit completes.
When all circuits work correctly and all questions and answers match as you intend, tape the folder flaps together so connections are not disturbed.