Matter and the Changes it Undergoes

Question

Read the following passage. Each sentence is numbered by a superscript at the beginning of that sentence. The goal of these two questions is to see if you are reading carefully.

All of the answers are right here on the page, but you will need to read carefully to find them.

Do not guess. READ the passage below and FIND the answers.

1Matter is defined as anything that has mass and occupies space. 2Many people refer to atoms as the building blocks of matter; this is because the matter we observe around us is made of atoms.

3Atoms are too small to see with the naked eye, but the properties of matter (including the properties we can see) can be impacted by outside influences like temperature and atmospheric pressure. 4The outside influence of temperature change can cause physical changes of matter. 5For example, when liquid water is exposed to higher temperatures, it may become gaseous water, called water vapor. 6When liquid water is exposed to colder temperatures, it may become frozen water, called ice.

7The properties of matter can also be impacted by the ways in which atoms are grouped together. 8When atoms are rearranged into new groupings, new compounds can be formed; we call this type of change a chemical change. 9Those new compounds that are formed have properties that are different from the properties the original compounds had. 10An example of a chemical change occurs during photosynthesis, when the atoms that make up water and gaseous carbon dioxide are rearranged to form new compounds of sugar and gaseous oxygen. 11This process takes place in green plants in special structures called chloroplasts.

Question 1
1. When you read the passage above, you should be able to determine that photosynthesis is a type of chemical change. Which sentences help you draw that conclusion?(1 point)
Responses

sentences 1 and 2
sentences 1 and 2

sentences 3 through 6
sentences 3 through 6

sentences 7 through 10
sentences 7 through 10
Question 2
2. How would you expect the properties of sugar to compare to the properties of carbon dioxide, and which sentences help you know this answer?(1 point)
Responses

same properties; sentences 7 and 11
same properties; sentences 7 and 11

same properties; sentences 4 and 5
same properties; sentences 4 and 5

different properties; sentences 9 and 10
different properties; sentences 9 and 10

different properties; sentences 2 and 3
different properties; sentences 2 and 3
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Answer 1

Question 1:
The sentences that help you conclude that photosynthesis is a type of chemical change are sentences 7 through 10. Sentence 8 specifically states that rearranging atoms into new groupings forms new compounds, which characterizes a chemical change, and sentence 10 provides an example of photosynthesis as a chemical change.

Question 2:
You would expect the properties of sugar to be different properties compared to the properties of carbon dioxide. The sentences that help you know this answer are sentences 9 and 10. Sentence 9 states that new compounds have properties that are different from the original compounds, and sentence 10 gives the example of how atoms rearranging during photosynthesis results in new compounds (sugar and oxygen) with different properties.