Question: Andi and Scott decided to investigate solar water heaters using collectors of different colors (but the same size) as one variable and covered versus uncovered as a second variable. Look at the graph of their data and answer the questions below. What does the graph tell you about the effect of using a cover?
Reference answer: Water heats up faster when covered.

Student answer: The blue covered was very hot.

Student answer: That they both are at 5, 10, 15, 20.

Student answer: The covered one get hotter than the uncovered ones.

Student answer: It tells about using the solar water heater on the data chart.

Student answer: The one is that are cover they heat up more sun and it gets hotter.

Student answer: That covered sometimes gets the hottest.

Student answer: That the sun absorbs more heat, with dark colors.

Student answer: Is that covered is more lighter.

Student answer: That by being covered the colors attract more heat.

Student answer: Blue was the darkest color and it was covered and that is how it got hotter.

Student answer: That the cover absorbs more heat.

Student answer: It absorbs more heat.

Student answer: It tells if you use a cover it gets hotter than not using a cover.

Student answer: It tells me because they are air in different position. And they are more longer than covered.

Student answer: When you cover the container you get more heat than uncovered.

Student answer: The blue covered have more time than red covered.

Student answer: How the temperature goes upward down.

Student answer: With a cover it does make it warmer but I think it depends on what color is underneath it.

Student answer: If something is covered with a dark color it will receive more heat from the sun and the heat will stay in.

Student answer: That the solar heat is getting hotter. And that it is up to about 20 minute almost to 25.

Student answer: Because it goes to the side and all different ways.

Student answer: That it will heat up faster than uncovered would.

Student answer: Heats up faster.

Student answer: Covering keeps the heat inside the container.

Student answer: It heats up faster.

Student answer: It tells me that if you use a cover the water will heat.

Student answer: It tells you that using a cover can make the water hotter because it is trap.

Student answer: It tells you that it will heat up faster.

Student answer: It the solar water heater has a cover it is going to get hotter.

Student answer: It gets hot faster with covered because when water starts to get hot no air comes in it starts to get hotter.

Student answer: It will kept on raising and raising.

Student answer: It tells me if you put a red uncovered it will not heat as much, If you put a red covered it will heat more than the red uncovered.

Student answer: The graph show that using a cover heats up the water on absorbs heat faster than without a cover because if it has a cover the breeze will not blow away the heat of the surface of the water.

Student answer: That the blue covered one is the hottest and the red uncovered one is the coldest.

Student answer: By saying that the covered one get more hotter and the darker it is it is going to end up hot.

Student answer: The graph tells us that the blue covered will get hotter because with the lid it got much more hotter.