Chapter 1: Q.1.4 (page 3)
Obtain a box of breakfast cereal and read the list of ingredients. What are four chemicals from the list?
Short Answer
The four chemicals are iodized salt, cornflour, whole wheat, and vitamins.
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Chapter 1: Q.1.4 (page 3)
Obtain a box of breakfast cereal and read the list of ingredients. What are four chemicals from the list?
The four chemicals are iodized salt, cornflour, whole wheat, and vitamins.
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Evaluate each of the following:
a..
b..
c..
On the first chemistry test, students got As, students got Bs, and students got Cs.
a. What is the percentage of students who received Bs?
Express your answer to the ones place.
b. What is the percentage of students who received Cs?
Express your answer to the ones place.
A bag of gumdrops contains 16 orange gumdrops, 8 yellow gumdrops, and 16 black gumdrops.
a. What is the percentage of yellow gumdrops? Express your answer to the ones place.
b. What is the percentage of black gumdrops? Express your answer to the ones place.
Identify each of the following as an observation, a hypothesis, an experiment, or a conclusion:
a. Every spring, you have congestion and a runny nose.
b. An overweight patient decides to exercise more to lose weight
c. Many research studies have linked obesity to heart disease.
Classify each of the following statements as an observation or a hypothesis:
a. A patient breaks out in hives after receiving penicillin.
b. Dinosaurs became extinct when a large meteorite struck Earth and caused a huge dust cloud that severely decreased the amount of light reaching Earth.
c. The dash was run in .
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