States of Matter Lab

Complete the following four States of Matter labs and States of Matter Lab Sheet.

Part 1: How do hot and cold molecules act in hot, cold and room temperature water?

Procedure - Part 1

• 1. Fill a clear plastic cup with room temperature water.

  2. Place three drops of hot (red) water in the center of the cup on the surface of the room temperature water.

  3. Draw and label your observations on your Lab Sheet.

  4. Repeat steps 1-3 using cold (blue) water drops instead of red (hot).

  5. Repeat steps 1-3 using both hot (red) and cold (blue) water drops - this time place the hot drops on one side of the cup and the cold on the other side.

  6. Answer the "Molecule Movement" questions on your Lab Sheet.

Part 2: Solid, liquid and gas can of science

Procedure - Part 2

• 1. Make sure the can is completely dry inside before starting, then put your can on the black paper. Take the beginning temperature readings and record on your Lab Sheet.

  2. Place 3 heaping teaspoons of salt in the bottom of the can. Fill the can about 1/2 full of ice and stir with stick.

  3. *****DO NOT TOUCH THE CAN BY ITS SIDES.

  4. *****DO NOT STIR WITH THE THERMOMETER

  5. Take temp. readings and record on your Lab Sheet.

  6. Add 3 more heaping teaspoons of salt.

  7. Add more ice until the can is ALMOST full and then add 3 MORE teaspoons of salt.

  8. Hold the can near the top and stir the mixture for 1 min.

  9. DO NOT TOUCH THE CAN ON ITS SIDES. Observe and record on your Lab Sheet.

Part 3: Does temperature affect the rate of evaporation?

Procedure - Part 3

• 1. Mostly fill one Ziploc bag with HOT water and the other with COLD water (squeeze as much air out of the bag as you can before you close it)

  2. Set the bags of water flat on your table and place a piece of paper towel on top of each bag

  3. Use a dropper to drop 5 drops of room temperature water on each paper towel, spread out the drops so they don’t overlap

  4. Watch the clock/timer for 4min (***during this time, draw your “before” pictures on your Lab Sheet)

  5. Record your observations on your Lab Sheet (both “after” drawings and “Observations/Evidence: look and feel after” sections)

1. Part 4: How does heating and cooling affect a gas?

   1. Procedure - Part 4

      1. Get a small cup with detergent solution.

      2. Take the water bottle and shake out any water.

      3. Fill two clear cups 1/3 full with water - one with hot and the other with cold.

      4. Turn bottle upside down and place its mouth in the detergent cup. Carefully tilt and lift the bottle out so that a film of detergent covers the opening of the bottle.

      5. Carefully put the bottle RIGHT SIDE-UP in the short cup of hot water SLOWLY and GENTLY push the bottle down into the water.

      6. Observe and record on your Lab Sheet.

      7. Repeat steps 4-6 with the cold water.

      8. Alternate placing the bottle in the hot and cold water. Observe and RECORD on on your Lab Sheet.