Refer to the Newsela article "How You Can Make a Solar Oven To Cook with a Pizza Box." What is the author's purpose in mentioning that solar energy is cheap?

to convince readers to use expensive energy sources

to inform readers about the details of solar energy

to increase the experiment's appeal

to explain that the sun does not produce much energy

Refer to the Newsela article "How You Can Make a Solar Oven To Cook with a Pizza Box."

How does the text make a connection between the solar oven and greenhouses?

It describes how the oven works similar to a greenhouse.

It provides an in-depth analysis of both.

It introduces categories to contrast them.

It contrasts the cost of a greenhouse to a solar oven.