copyright © 2012 interactivesciencelessons.com do: mixed baking soda and vinegar in a bag. see: a...

pyright © 2012 InteractiveScienceLessons.com Do : Mixed baking soda and vinegar in a bag. See : A chemical reaction occurred, creating lots of gas (CO 2 ). What’s Happening: Gases have more energy than solids and liquids. The atoms are so active they collide and start spreading apart. Gases take up about 50x more space than liquids. Interactive Notes: The States of Matter Read p. ¶ together

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Do: Mixed baking soda and vinegar in a bag.

See: A chemical reaction occurred, creating lots of gas (CO2).

What’s Happening: Gases have more energy than solids and liquids. The atoms are so active they collide and start spreading apart. Gases take up about 50x more space than liquids.

Interactive Notes: The States of Matter

Read p. ¶ together

Page 2: Copyright © 2012 InteractiveScienceLessons.com Do: Mixed baking soda and vinegar in a bag. See: A chemical reaction occurred, creating lots of gas (CO

Do: Placed a penny on top of a heated bottle.

See: The penny flapped up and down.

What’s Happening: The heat excited the air in the bottle, and it sped up & expanded. Pressure built up until it was strong enough to push up on the penny.

Read p. ¶ together

Page 3: Copyright © 2012 InteractiveScienceLessons.com Do: Mixed baking soda and vinegar in a bag. See: A chemical reaction occurred, creating lots of gas (CO

Do: Touched an ice cube to the baggie.

See: A small cloud formed on the inside.

What’s Happening: Where the ice touched, water vapor inside the baggie lost energy, slowed down, and condensed. Removing energy from a gas causes it to become a liquid and then a solid.

Page 4: Copyright © 2012 InteractiveScienceLessons.com Do: Mixed baking soda and vinegar in a bag. See: A chemical reaction occurred, creating lots of gas (CO

Do: Put food coloring in hot and cold water.

See: The coloring spread much faster in the hot.

What’s Happening: The atoms in gases and liquids are always randomly moving around each other. The hotter (more energetic) they are, the faster they move. This is called Brownian Motion.

Page 5: Copyright © 2012 InteractiveScienceLessons.com Do: Mixed baking soda and vinegar in a bag. See: A chemical reaction occurred, creating lots of gas (CO

Clean Up- this is what your box needs to look like in 5 minutes.

Person 1•Throw away inflated bag•Get new bag, put in 2 scoops of baking soda•Put ~30mL vinegar in small beaker

Person 2•Empty big beaker, put bottle inside of it•Make sure penny is in box

Person 3•Count 4 new note sheets

Person 4•Empty and rinse the beaker with colored water. Half-fill it with tap water, then put ice in it.•Make sure dropper with coloring is in bag and has coloring in it

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