Objective 3:
1. The four properties of acids are that they conduct electricity, they are sour tasting, they reacts with a base, and they react with active metals.
2. The four properties of bases are they conduct electricity, they are bitter tasting, they react with acids, and they feel slippery on skin.
3. Most liquid acids will turn blue limtus paper pink, it doesn't affect red. Bases turn red litmus paper blue.
4. Maybe the food would be sour tasting if it contained acid because one of the characteristics of acid is that it tastes sour.
5. There are chemicals in the fertilizer and it could get into cuts on your hands. Also, it's for plants. not humans, those type of chemicals can irritate your skin.
Citations:
http://plaza.obu.edu/corneliusk/ps/chem/a_b.pdf
http://wiki.answers.com/Q/How_can_you_use_litmus_paper_to_distinguish_an_acid_from_a_base
http://homegarden.me/why-is-it-wise-to-wear-gloves-when-spreading-fertilizer-in-a-garden/
http://answers.yahoo.com/question/index?qid=20080508201726AAJBckx
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