Mini-Quiz: Heating a Greenhouse

1. What is a major purpose of the glass walls and roof in a greenhouse?

   It allows workers to enjoy the outside scenerySorry, not correct. Try another button. It allows sunlight in to help the plants grow and keep the building warmThat is correct. You know your greenhouses. It prevents winter snow from piling up too high and blocking the sunlightGood try, but not right. Select another answer.

2. Why would they add containers of water or sand in a greenhouse?

   Water and sand are good for absorbing and holding heatCorrect. Great job! You are improving. They are used in case the plants get too dry or need drainageOops! Wrong answer. Re-read the question and try again. The containers are there to be sold to customersSorry, not correct. Try another button.

3. What is special about greenhouse glass or plastic material?

   It is not toxic to the plants or humansSorry, not correct. Try another button. It has a light green color for decorationOops! Wrong answer. Re-read the question and try again. It allows sunlight in but does not allow thermal radiation outThat is correct. You know your greenhouses.

Pick an answer to see instant feedback. Re-read the lesson if you miss one.