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Chemistry |
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- Define chemistry and tell what chemicals are.
- Make a list of 10 chemicals found in your home and their use.
- Tell how chemicals in your home are safely stored and how to dispose of
them safely.
- Tell the difference between a chemical reaction and a physical change.
- Tell what analytic chemists do. Do THREE of the following:
- Prepare an indicator from a plant leaf or bloom. Show that it works when
vinegar neutralizes a baking soda solution.
- Compare the strengths of 5 percent solutions of baking soda and borax by
titrating each with vinegar.
- Test two different bits of food for starch and protein.
- Compare the amounts of vitamin C in two kinds of fruit juice.
- Show that an ink or food color has two or more colors by using paper
chromatography.
- Define biochemistry.
- Write the simple equation for photosynthesis. Explain what parts
sunlight and chlorophyll play in it. Give the names and symbols of the three
main parts of a 10-6-4 fertilizer. Explain what each one does for plants.
Draw from memory a sketch of the carbon dioxide-oxygen cycle.
- Explain what oxygen does in the body of an animal. Describe how oxygen,
carbon dioxide, and carbon monoxide are carried in the body. Describe the
chemical changes taking place when:
- Vegetables cook
- Meat cooks
- Bread dough rises
- Bread bakes
- Bread is chewed
- Define inorganic chemistry. Carry out an experiment to show three
different ways of protecting iron or steel from rusting. Tell why aluminum
doesn't rust the way iron does. Do an experiment in which one metal makes
another metal deposit from solution. Explain what takes place in terms of the
activity series of metals.
- Define organic chemistry.
- What are organic chemicals?
- Name three organic chemicals.
- Tell the difference between polar and nonpolar.
- Show how polar and nonpolar substances do not mix.
- Define physical chemistry.
- Construct a Cartesian diver.
- Explain why the medicine dropper sinks to the bottom when the sides are
squeezed.
- Define pollution.
- Name two chemicals that cause air, water, or solid waste pollution near
your home. Tell where these pollutants might have come from. Find one way to
control one of these. Do one test to show that air or water is polluted.
- Do ONE of the following:
- Write the formula for ozone. Tell where it is found. Tell how it is
both a pollutant and also necessary for a healthy environment.
- Write the formula for carbon dioxide. How can it cause the greenhouse
effect?
- Write the formula for sulfur dioxide. Explain what acid rain is. What
does pH measure? Measure the pH of rain or a body of water near your
home. Tell how acid rain can be prevented.
- Do ONE of the following:
- Visit an industrial plant that makes chemical products or uses chemical
processes, and describe the processes used. What, if any, pollutants are
produced and how are they handled?
- Visit a laboratory or business that uses chemicals and find out how and
why chemicals are used.
- Visit a county agent to learn how chemistry is meeting farm problems of
soil fertility and crop pests.
- Describe two different kinds of work done by chemists, chemical engineers,
and chemical technicians. Explain the differences in college courses for
training each of these three kinds of people.
BSA Advancement ID#: 34
Source: Boy Scout Requirements, #33215D, revised 2001