Veggies Under Glass
Virtual tour guide
Name: ______________ Class: ________
Take this quiz after your tour of BC Greenhouse.
1.What word would best describe the type of environment that is created in a greenhouse?
a controlled environment
sauna
tropical oasis
all the above
2. What in not one of the key elements required for greenhouse growing?
oxygen
sunlight
carbon dioxide
water
3. What produces the plants main food?
PhotosynthesisTerrarium
Synthesis
Chlorophyl
4. What renewable resource is found in a greenhouse?
|
soil |
|
gases |
|
water |
|
solar energy
|
5. About what percentage of the vegetables are produced in the local greenhouses?
20%
1%
55%
11
6. What is the source of all energy on earth?
The greenhouse effect
Fossil fuels
The sun
Conventional cropping
BONUS: Supplementary Reading about
1You know that the sun is the source of all energy on earth. But sometimes we get a double dose of that energy. Solar radiation reaches the earth. The earth soaks up some of it and reflects some back to the atmosphere. The reflected radiation is absorbed by the gases in the atmosphere. The gases act like the glass walls of a greenhouse. They trap the warm air in and reflect it back to earth again. Scientists call this the greenhouse effect.
2You may have heard that the greenhouse effect is a bad thing. But the truth is life could not exist on earth without it. Our planet would be cold. However, an increase in the greenhouse effect would make earth too hot. Many scientists think that this is happening now. There is an increase in carbon dioxide. This is causing an increase in the greenhouse effect. The earth is warming up.
3Temperatures around the earth have steadily gone up over the past 200 years. The past twenty years have seen the biggest increase. If this continues, it could have a shocking effect on the earth. People's lives could be changed in a negative way.
4Most scientists agree that global warming is happening. What they disagree on, though, is what is causing it. The greenhouse effect happens naturally. There is proof that the climate of the earth has warmed up and cooled down in the past. But data show that the population is growing. So is the amount of carbon dioxide in the air. Are people causing global warming? If so, what effects will this have on the earth?
7. Gases in the atmosphere act like:
Walls of a greenhouse
Violent storms
Polar ice caps
|
Cooling
|
|
|
|
|
|
|
|
|
|
8. The greenhouse effect is always bad for the earth.
False
True
|
9. Name two effects global warming is having on our weather.
|
|
|
10. Name two activities that put more carbon dioxide in the air.
|
11. What has happened to the level of the ocean over the past 100 years?  It has increased. It has stayed the same. It has decreased
|
BONUS: Supplementary Read About:
Kitchen Chemistry
|
|
|
|
|
|
|
|
1Inquiry is a wonderful word in science. It means investigating and learning about things on your own. If you want to do some inquiry into the science topic of matter, a really good place to start is in the kitchen. Kitchen chemistry is a great way to demonstrate chemical changes and the three phases of matter.
2There are lots and lots of things you could investigate in the kitchen, since cooking usually involves some chemical processes, but let's just look at these few: bread, red cabbage, hot fudge sundaes, popcorn, and oobleck.
3Cooking food often causes a chemical change. When a chemical change happens, the food cannot be changed back into what it originally was. So, making a salad is not a chemical change, because you can take a salad back apart, but baking bread is a chemical change, because you can't separate bread into its original ingredients. Baking bread is a chemical change that uses water, baking soda, and other ingredients that produce acid. Baking these ingredients releases carbon dioxide gas, which is what makes the bread rise.
4Not all chemical changes involve cooking or heating. Red cabbage juice is a good example, but you will need to cook a little first to get your materials ready. First, chop some red cabbage (it really looks purple) and cook it in boiling water for about 20 minutes to make red cabbage juice. This juice can now be used to test other substances to see if they are acids or bases. You could try testing lemon juice, clear soda, dishwashing liquid, vinegar, and other ingredients. Mix each one with some red cabbage juice. A chemical change may happen, and if it does, the color that results will tell you if you have an acid or a base. An acid should turn pink, and a base should turn green.
12. Baking bread is a chemical change.
True
False
13. The chemical produced when you bake bread is _____.
Flour
Water
Carbon dioxide gas
Uranium
14. What combination of foods could you find in a greenhouse to make a recipe which
does not require chemical change? Look on the website to find recipes.
15. What examples of food safety can we find in a greenhouse?
________________________________________________________________________
16. What way are vegetables pollinated in a greenhouse?
Wind generated from fans
Lady Bugs
Carbon dioxide gas
Bees
17. What vitamin do greenhouse vegetables have in common?
A
C
E
Beta-Carotene
18. What vegetable belongs to the family of gourds?
Tomatoes
Peppers
Cucumbers
Lettuces
