- 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 baking
- Compare the strengths of 5 percent solutions of
baking soda and borax by titrating each with
- Test two different bits of food for starch and
- Compare the amounts of vitamin C in two kinds of
- Show that ink or food color has two or more colors
by using paper chromatography.
- Define biochemistry.
- Write a simple equation for photosynthesis.
Explain what parts sunlight and chlorophyll play
in it. Give 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 animal body.
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
- Define physical chemistry.
- Construct a Cartesian diver.
- Explain why the medicine dropper sinks to the
bottom when the sides are squeezed.
- 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? 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
- 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.