Benefits and Risks of Chemical Use

A woman needs to get rid of insects in her home. Which of these would be the most effective alternative to chemical pesticides?

• closing up cracks and holes around doors and windows

• raising the temperature in the house

• spraying perfumes or scented oils along the floor

• leaving food around the outside of the house

What is the name for chemicals that are used to make food last longer?

• drugs

• pesticides

• preservatives

• vitamins

Why does detergent remove oil better than water alone?

• It attracts both water and oil molecules so they can rinse away together

• It kills bacteria

• It absorbs the oil and repels the water

• It heats the oil and causes it to evaporate

What is the benefit of using chemical pesticides on food plants?

• the soil around the crops becomes richer

• insects cannot eat or lay eggs on the crops

• the crops absorb more nutrients

• the food that is produced lasts longer without spoiling

Which of these chemicals contribute to water pollution?

• chemical flavor enhancers

• chemical fertilzers

• chemicals in pain relievers

• chemicals in toothpaste

Chemicals are used as preservatives, additives, and artificial coloring in food products. What is one risk of chemical use in food products?

• health problems

• air pollution

• crop death

• soil damage