Tomatosphere

This backgrounder explains what light is, how it is measured, and how it affects people on Earth and astronauts on board the International Space Station.

Making Comparisons is a way of thinking about two or more objects, ideas and/or events to find out how they are the same and how they are different. Knowing this information allows students to sort, classify and organize objects, ideas and/or events, to connect prior knowledge about them to new knowledge, and to develop appropriate comparative vocabulary.

Do an experiment with celery to learn about the structures that help plants take up water.

Humidity is an important part of life on Earth and life in space. This backgrounder explains what humidity is, how it is measured and how it affects us both mentally and physically.

Humidity is an important part of life on Earth and life in space. This backgrounder explains what humidity is, how it is measured and how it affects us both mentally and physically.

Students will work collaboratively to design and build a simple irrigation system that transports water to at least two plants from one source without leaking.