Alien Juice Bar Activity
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by Joe Marquez
| 7 Questions
Note from the author:
Acids and Bases
You are a waiter at a cosmic resturant. Your customers want a variety of beverages, but because they are aliens, they must receive beverages with a very specific pH. Before you begin the labe please answer the following:
1
1
What is pH and what is the pH scale?
2
1
Acids have a pH...
Of 7
Above 7
Below 7
3
1
Strong acids are closest to...
pH 7
pH 0
pH 14
4
1
Bases have a pH...
Of 7
Above 7
Below 7
5
1
Strong Bases have a pH closest to....
pH 7
pH 0
pH 14
Now that you have answered the questions above, please go to the following website to complete the lab tasks below:
http://static.lawrencehallofscience.org/scienceview/scienceview.berkeley.edu/html/showcase/flash/juicebar.html

You might need to copy the URL above, open a new tab, then go to the website to view the activity

Challenge 1: Alien Juice Bar
1. Click on Challenge 1 then “start”.
2. Click on the pitcher of cabbage juice and drag towards one of the three drinks.
3. The cabbage juice will pour into a beaker and may or may not change color.
4. Continue until all three drinks have been poured.
5. Place the drinks onto the correct shelf above the alien’s head.
6. When done, pull the “check me” lever.
7. If you are wrong, the bottles will come off the shelf – try again until you get them all right!
8. Fill in the data table to show your results.

6
1
Fill out the chart below based on the directions above
Click on “Test More” to continue.
9. Click on the pitcher of cabbage juice and drag towards one of the nine drinks.
10. You may pour the cabbage juice to indicate if it is an acidic, basic or neutral drink.
11. Continue until all nine drinks have been poured, or you can try to guess the pH of each bottle!
12. Place the drinks onto the correct shelf above the alien’s head.
13. When done, pull the “check me” lever.
14. If you are wrong, the bottles will come off the shelf – try again until you get them all right!
15. Fill in the table to indicate where each drink belongs.
7
1
Fill in the Data Table below:
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