Answer the questions a. What do we call air when it moves?

b. What falls more quickly in air - a piece of wood or a

piece of paper? Why?

c. Why can airplanes fly?

d. What lifts them off the ground?

e. Does a stone take the shape of a vessel?

f. What do we call the bodies which keep the same

shape when you put them in a vessel?

g. Why is air not a solid?

h. Is it liquid? Why not?

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Джерьяна    3   15.01.2021 10:51    5