STEP 1: Blow up the balloon, let some of the air out and then tie a knot at the end to hold the air inside the balloon. Describe the balloon by using its observable properties. STEP 2: Gently twist ...
* STEP 1: Blow up the balloon, let some air out, and then tie a knot at the end to hold the air inside the balloon. * STEP 2: Dip the tip of the skewer into the cooking oil. * STEP 3: Gently twist the ...
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