Date post: | 13-Feb-2017 |
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ATOMS IN ACTION-Helium gas atoms in balloons hit the wall and push it out. This is pressure.- Helium-filled balloons float because they are lighter than oxygen in the air6
ATOMS IN ACTION
1ST GRADE SCIENCE CLASSESBRADENTON CHRISTIAN SCOOL
BY PAUL H. CARR, Ph. D. Scientist
Web page www.MirrorOfNature.org