From The Glad Scientist Discovers the CreatorTheme: The weight of Sin like Air is invisible but real. God frees us from the burden of sin.
Bible Verses: All a man's ways seem innocent to him, but motives are weighed by the LORD (Proverbs 16:2)
Therefore, there is now no condemnation for those who are in Christ Jesus, because through Christ Jesus the law of the Spirit of life set me free from the law of sin and death. (Romans 8:1-2)
Materials Used: Two balloons (same size and shape), thin wooden rod, sticky tape, pencil with flat sides, two cans (same size).
Lesson: Air is around us everywhere and has weight. The Bible tells us about something else that carries weight in our lives called sin. Sin means disobeying God.
Everyone has sinned (Rom 3:10-12, 23). God even looks at our motives for doing things. We carry sin’s weight in lives like the balloon carries the weight of air in it.
Sin weighs us down, but Jesus died on the cross so we no longer carry the weight of sin. We will pop the balloon with a nail to remind us of Jesus’ death on the cross for us. There he bore the penalty of our sin. When we trust Christ as our Savior and believe he rose again, our sin is not held against us any longer. We are free from the burden of sin.
Illustration: We show that air has weight by first balancing a rod across the pencil on the cans and marking the center of the rod. Then we taped the empty balloons to the ends of the rod and showed it still balances. Next we blew up one balloon and saw that the full balloon pulled the balanced rod down on that side.
I did a little reading up on the science of this experiment and found that the explaination is not quite accurate. Read this to learn about how it's really the density of air in the balloons that causes the difference in weight. One balloon should be filled to bursting and the other filled, but not so much so that the rubber is hard. I guess I have misled my students a bit
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