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Test 1
Crossword puzzle
Across
- Water turns to _____ at 100°C.
- People like to camp and ____.
- When we don't get ______ water, we experience droughts.
- You should not allow the tap to ____ – it wastes water.
- Without this, a person would die in about three days.
- H2O means that water contains one atom of ______ and two atoms of (2 down).
- According to the ___ bang theory, water has been on earth over four billion years.
- Water can be used over and over. It is a _________ resource.
- Cook an ___ in water for breakfast.
- We should ____ our water supply to find out if it is safe to drink.
- The antonym of wet is ___.
- You can catch fish using a rod and ____.
- Clean water should be the concern of all ______.
- Water can dissolve many substances. It is a good _______.
Down
- If we pollute water, we _____ it for our use. (Rhymes with oil.)
- H2O means that water contains one atom of (7 across) and two atoms of _______.
- One of the Great Lakes is Lake ____.
- We should not ____ hazardous household products down the drain.
- All _________ of water contain hydrogen and oxygen.
- The blanket of air around the earth is called the __________.
- This is 83% water.
- Water can dissolve _________ as food for plants and animals.
- Let's not take water for _______.
- ____ from the sun makes our lakes warm for swimming.
- Repair a ____ promptly – don't waste water.
Fill in the blanks
- ____% of the blood in your body is water.
- The scientific symbol for water is ____.
- Water has been around since the earth was formed over ____ billion years ago.
- Another name for the water cycle is the _________ cycle.
- Water vapour enters the atmosphere by _________ from bodies of water and by __________ from plants.
- Clouds are formed when water droplets come together as __________.
- Rain, snow, hail, and sleet are all forms of ____________.
- ____% of the world's total water supply is fresh water.
True or false
| T F | 1. Water is two parts oxygen and one part hydrogen. |
| T F | 2. More than one-half of the world's animal and plant species live in water. |
| T F | 3. Without water, every single living thing on earth could not survive. |
| T F | 4. There is less water on earth today than when the earth was formed. |
| T F | 5. Canada's largest river is the St. Lawrence. |
| T F | 6. Canada has approximately 7% of the world's freshwater supply. |
| T F | 7. Most of Canada's rivers drain north. |
| T F | 8. Water makes up 95% of your body. |
| T F | 9. Water turns to ice at 100°C. |
| T F | 10. Canada's glaciers contain more water than do the Great Lakes. |
Water puzzle
Find the water-related words in this puzzle. Learn how to spell all the words and look up the definition for each.
| air | ice | snow |
| basin | percolate | tap |
| condensation | pour | transpiration |
| disperse | precipitation | use |
| dry | rain | vapour |
| evaporation | recycle | vital |
| groundwater | river | |
| hydrologic | saturate | |
M O T A N R T C P O U R
V I T Y O V C O U N S I
N N R V I I I N D O E A
I D U A T T G D E I E G
A O O P A A O E S T T R
R V P H T L L N E A A O
S B A S I N O S R R L U
A E V A P O R A T I O N
T S P T I E D T I P C D
U N A U C N Y I C S R W
R O R Y E O H O E N E A
A W C E R X H N G A P T
T L A C P R E V I R A E
E E S R E P S I D T T R
Match the meanings
| 1. evaporation | ( ) | method by which water reaches groundwater |
| 2. condensation | ( ) | full of water |
| 3. precipitation | ( ) | method by which plants send water into atmosphere |
| 4. transpiration | ( ) | water molecules form clouds |
| 5. saturated | ( ) | sun's energy turns water to vapour |
| 6. percolate | ( ) | water falls to earth |
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