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3.Danny c_______ that air p______ is stronger than he thought.
4.The c ____ theory is the f___ of the air keeps the water in the jar.
pside
cientific
ethod
oncludes
ressure
orrect
orce
Pre-reading
1.Turn the jar u ____ down
and we can see if the water p___ out.
ours
Water, a jar, a piece of cardboard.
While-reading
Step 3 Result:?
Danny’s theory： Jenny’s theory：
The water will pour out.
The air pressure keeps the water in the jar.
Step 1 Preparation:
Step 2 Main steps:
1. Fill a jar with water.
2. Cover the top with a piece of cardboard.
3. Turn the jar upside down.
The water will stay in the jar.
put
on
fill
with
cover