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WorksheetsRennalls Unit 2 6/7 Integrated Science
Total questions: 15
Worksheet time: 8mins
What might happen if water molecules did not have a slight negative charge on one end and a slight positive charge on the other?
Water would not be able to freeze or boil
Water molecules would not clump together in droplets
Only saltwater, not freshwater, would exist on earth
Which of the following has the lowest freezing point?
The water that comes out of your kitchen faucet
Salty ocean water
Fresh lake water
Earth is the only known body in the solar system with lots of liquid water. It is also the only known body that supports life. What can you infer from this?
There is no life in the universe outside of Earth
Liquid water may be a requirement for living organisms
Living organisms can only exist on planetary bodies that have liquid oceans
If you weigh 100 kg, how much would you weigh if all the water were removed from your body?
65 kg
35 kg
Water perpetually cycles from the Earth to the atmosphere and back. In the previous sentence, what does "perpetually" mean?
Constantly
Frequently
Occasionally
What effect does the sun have on surface water?
It causes it to boil
It causes it to rain
It causes it to evaporate
What is weathering?
A process that breaks down rocks into smaller pieces.
A shift in weather patterns.
The process by which mountains are formed.
How might a weathered mountain appear different from an unweathered mountain?
The weathered mountain would be taller.
The weathered mountain would appear rounder in shape.
The weathered mountain would appear more jagged.
How is mechanical weathering different from chemical weathering?
Chemical weathering happens over a much shorter time frame than mechanical weathering.
Chemical weathering occurs in the tropics; mechanical weathering occurs in temperate climates.
Chemical weathering changes the chemical composition of materials; mechanical weathering does not.
What's the difference between a hypothesis and a theory?
"Theory" is another word for "fact;" "hypothesis" is another word for "guess."
Theories have been confirmed through tests; hypotheses haven't.
Theories contain many hypotheses; a hypothesis only contains one theory.
In the phrase, "The scientific method is an analytic process for determining why things happen," what's the best synonym for "analytic?"
Probable
Logical
Incoherent
If you were running an experiment to determine the temperature at which beans sprout the fastest, what would be the variable?
The number of beans you plant.
The temperature at which each bean is kept.
You should run an experiment several times to make sure your results are consistent. In the preceding phrase, what does "consistent" mean?
Obvious
Unchanging
Perfect
Evolution is one example of a theory. From what you know about the scientific method, what can you conclude about this biological theory?
It's been tested many times.
Scientists don't need to test it anymore.
There is very little evidence to support it.
What happens if you test a hypothesis multiple times and the data doesn't support your prediction?
Change the data to support your prediction
Run the experiment again until you get the results you're looking for
Re-think your hypothesis
