Tuesday, June 29, 2010

Baggie Bombs

Supplies

1. 1 Tbs. baking soda
2. Zip Lock bag
3. Dixie cup full of vinegar

Concept: Chemical Reactions- Baking soda and vinegar make a gas (carbon dioxide) and heat was absorbed (it gets cold).

Procedure: Have students place 1 Tbs.of baking soda in Zip Lock bag, pour Dixie cup of vinegar into bag and zip tightly.

Extension: Use yeast instead of baking soda and hydrogen peroxide instead of vinegar to make a different gas (oxygen). This experiment will produce heat.

Application to Real World: We breath in oxygen and exhale carbon dioxide, while trees absorb carbon dioxide and release oxygen out into the environment.





Monday, June 28, 2010

Questions for Science Exploration

From the Exploratorium Institute for Inquiry, written by teacher Marilyn Austin.

1. What does this make you think of?
2. In what ways are these different?
3. In what ways are these same?
4. What materials did you use?
5. What would happen if you...
6. What might you try instead?
7. Tell me about you're...?
8. What does it look like?
9. What does it remind you of?
10. What does it feel like?
11. What can you do next time?
12. What can you tell me about it?
13. Tell me what happened.
14. What could you do instead?
15. Which one do you have more of?
16. Is one object longer/shorter than another?
17. What do you call the things you are using?
18. What can you tell me about the things you have?
20. How are you going to do that?
21. What do you feel, see, hear, taste, and smell?
22. How did you do that?
23. What will you do next?
24. Is there anything else you could do/use?
25. How do you know?
26 What are some different things you could try?
27. What is it made of?
28. Show me what you could do with it?