Dissolving boiling
melting
burning
photosynthesis
chemical changes
rusting
Changes to Matter
Physical changes
examples
examples
1.
5.
2.
6.
3.
7.

What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?

Voltaic cells produce a positive overall charge. what does this indicate? a. the reaction is likely to be endothermic. b. the reaction is spontaneous. c. the reaction is not likely to occur. d. the reaction is not spontaneous.

The reactions of photosynthesis occur in the of plant cell? a.mitochondria. b. lysosomes. c. chloroplasts. d. chlorophyll