Air Is Matter
It's difficult at times for younger students to realize that air has mass. Matter is something that has volume (takes up space) and has mass (*can be weighed). Air does take up space, even if we can't see it, and air has weight, even if we can't feel it -- and both of these properties can be observed and measured.
-Observe that air exerts pressure (presses on the things around it)
Vocabulary: Solids, Liquids, Gases, mass, weight
Context for Use
Description and Teaching Materials
From there we will go on an air walk, with students using their senses to find evidence of air and its influences. Students will explore and be challenged to pour air in a cup underwater to another cup. The last activity will show that air can exert pressure through force by lifting various objects using plastic bags.
Air Is Matter (Microsoft Word 39kB Aug28 09)
Teaching Notes and Tips
1. The student will understand that objects can be sorted and classified based on their properties.
2. The student will classify a substance as a solid, liquid or gas.
3. The student will know that solids have a definite shape and that liquids take the shape of their container.