Science and Scientists
Science – the knowledge obtained by observing natural events and conditions in order to
discover facts and formulate laws or principles that can be verified or tested
Section Review
2. How do scientists investigate their questions?
Scientists investigate their questions by researching, making observations, and doing
experiments.
3. What are three ways that knowledge gained through scientific discoveries can benefit the
world around you?
Three ways that scientific knowledge can benefit the world are by saving lives, using
resources wisely, and by improving the environment.
4. Which of the following careers does NOT rely on science?
d. None of the above
5. What are some resources that you can use to do research?
Some resources that you can use to do research are textbooks, encyclopedias, magazines,
and the internet.
6. If recycling 1 metric ton of paper saves 4,500 kWh of energy, how much energy is saved by
recycling 2.75 metric tons of paper?
If 1 = 4,500 then 2.75 = 12,375 kWh
7. Imagine that you are a cartographer who needs to draw a map that has the following scale: 1
cm = 1 m. How long would the line representing a wall that is 8.5 m long be?
1 cm = 1 m then 8.5 m = 8.5 cm
8. Your family usually buys the leading brand of toothpaste. A 5 oz tube of this toothpaste costs
$3. You notice that a 5 oz tube of another brand costs $2. Which brand is cheaper? What other
information would you need in order to decide which brand was a better value?
The $2 brand is cheaper. The value depends on the quality of the toothpaste.