1. Investigating Bubbles and Gases By Allison E. King & Jennifer Worthington

2. Review on Solids and Liquids We have already learned about solids and liquids. But does matter only exist in these two states? If not, what is another state that matter can exist in? Let’s look at ice and water.

3. Review on Solids and Liquids Continued What state is the ice in? What state is the water in? Can you think of a way to make water a gas? What are some examples of a gas?

4. Gases A gas’s particles are loosely arranged and move quickly. Air is the most common type of gas, and we breathe it everyday. Today we are going to capture air. How do you think we can do this? Look at the slide!!

5. Experiment Work in groups of two. Pick up materials and worksheet. Write the name of each shape of the wand in the space provided on the worksheet. Write predictions of what shape bubble each wand will produce. Blow bubbles for each wand. Do three trials for each wand and record observations. After cleanup, each pair will receive a laptop. Use Hotlist link to explore bubbles.

6. What did you discover? Did you notice any patterns among the bubbles that you made? Did you come to any conclusions from looking on the internet?

7. Summary When we blew these bubbles, we were capturing air, which is a gas. The bubble will always take the form of a sphere, which is round. This happens because a sphere has the least amount of surface area than any other shape we used today.

8. Assessment Draw a large bubble and use a pencil to show how the gas particles are arranged inside the bubble. Write down the gases from the list of substances written on the board.

9. Homework Write one paragraph stating how you would explain to a friend or family member as to why a bubble will always be round.

10. Resources http://www.chem4kids.com/files/ma tter_states.htmlhttp://www.chem4kids.com/files/ma tter_states.html http://www.exploratorium.edu/ronh/ bubbles/shape_of_bubbles.htmlhttp://www.exploratorium.edu/ronh/ bubbles/shape_of_bubbles.html http://members.ozemail.com.au/~ macinnis/scifun/bubbles.htmhttp://members.ozemail.com.au/~ macinnis/scifun/bubbles.htm http://bubbles.org/html/questions/ro und.htmhttp://bubbles.org/html/questions/ro und.htm http://simscience.org/membranes/i ntermediate/essay/why_bubbles_r ound1.htmlhttp://simscience.org/membranes/i ntermediate/essay/why_bubbles_r ound1.html http://www/drbudtheclown.com/bub ble/data/lesson%2001%20- %20why%20are%20bubbles%20ro und.htmlhttp://www/drbudtheclown.com/bub ble/data/lesson%2001%20- %20why%20are%20bubbles%20ro und.html