These all have to be explained as it is a science project (50 points if you don't know the answer then don't answer) Task 1: Modeling the Greenhouse Effect Hypothesis and Data Collection

a. Predict whether the two bottles will differ in temperature.

b. Record the temperatures inside both bottles.

Analyze and Extend

a. Compare the prediction to the observation.

b. Graph the temperature data.

c. Identify trends in the temperature data.

d. Describe what the plastic represents in the model.

e. Explain why greenhouse gases are important to sustain life.

f. Describe how greenhouse gases can affect Earth’s temperature.

g. Explain the effect of greenhouse gases on glaciers.

h. Develop questions to ask about the graph of Earth’s average temperature.

Task 2: Carbon Dioxide’s Effects on Temperature

Hypothesis and Data Collection

a. Predict whether the two bottles will differ in temperature.

b. Record the temperatures inside both bottles after 30 minutes.

Analyze and Extend

a. Compare the prediction to the observation.

b. Identify the dependent and independent variables in the experiment.

c. Draw conclusions about the effect of carbon dioxide in the atmosphere.

d. Explain the effect burning fossil fuels might have on Earth’s temperatures.

e. Develop questions about the effect of electric cars on the environment.

You will need these materials:

-2 empty two-liter plastic bottles (or 2 clear plastic containers, similar in size), rinsed
-2 thermometers (not mercury) that will each fit inside a bottle
-a lamp with a 150-watt incandescent bulb (if direct sunlight is not available)
-a measuring cup
-soil (4 cups)
-a roll of plastic wrap
-a scissors or utility knife
-clear tape
-1 rubber band
-6-8 ice cubes (all the same size)

-Cut off the neck of each bottle using the scissors
-Add two cups of soil to each bottle.
-Place 3–4 ice cubes on top of the soil. The number of cubes must be the same in each bottle.
-Tape a thermometer into the inside wall of each bottle. Stay safe: do not use mercury thermometers in the event they might break. Be sure to face the thermometer outward from the bottle for easy reading.
-Cover the top of one bottle tightly with plastic wrap secured by a rubber band. Leave the other bottle open.
-Position the bottles so that they are an equal distance from the lamp. (If you're not using a lamp, place the bottles in direct sunlight.) Turn the lamp on. Stay safe: To avoid electrocution, keep all water away from electrical sources.
-Face the thermometers in the same direction for easy reading,