Activity Book 4: Answer Key

Can you spell Energy efficiency?

1.Efficiency

2.Sweater

3.Fluorescent

4.Solar

5.Alternative

6.Computer

7.Biofuels

8.Previously

9.Reduce

10.Recycle


Interesting

1.$13.25

2.$13.26

3.a. $1.00

b. $55

c. First year : $110

Second year: $257.2


Quiz on science and innovation in agriculture

1.c) Frozen foods

Frozen foods were an instant success when a Canadian decided to freeze fresh strawberries and raspberries and sell them at Christmas. Before frozen foods, fresh food would have to be purchased almost every day. Today, thanks to microwave ovens, the frozen food sector in Canada is a multi-million dollar industry.

2.c) All of the above

All these products contain corn or corn by-products. Scientists are always looking for new ways to use crops to help farmers diversify their activities and increase their profits.

3.b) There is wool at the core of a baseball

Baseballs have about 50 meters of wool in their core.

4.b) 1,000

About 1,000 times, more or less. Any cow that burps 123,000 times a day is probably going to explode. Methane is a big component of cow burps and is one of the greenhouse gasses that contribute to global warming. Scientists are testing different diets to reduce the methane emissions from animals.

5.b) 2,500

Corn is used in the production of about 2,500, or 25 per cent, of the products found in supermarkets. It is found in tacos and corn chips as well as in non-food items like glue, toothpaste, cosmetics, paper and diapers.