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ACT Science Videos 67 videos

ACT Science 2.1 Research Summary Passage
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ACT Science: Research Summary Passage Drill 2, Problem 1. Why do you think that the filter paper will not remove the salt from the water?

Suggestive Statistics
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ACT Science: Data Representation Passage Drill 1, Problem 1. What do the statistics in Figure 1 suggest?

ACT Science 1.2 Data Representation Passage
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ACT Science: Data Representation Passage Drill 1, Problem 2. Which of the following is a variable in Figure 1, but not in Figure 2?

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The Carbon 14 Years 198 Views


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ACT Science: Data Representation Passage Drill 3, Problem 3. Which of the following is the reason why an individual born in 1963 has a higher 14 C content than someone born in 1945?

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Transcript

00:04

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00:07

The protein-enhanced brand of contact love.

00:27

Which of the following is the reason why an individual born in 1963 has a higher 14C content

00:32

than someone born in 1945?

00:35

And here are the potential answers...

00:41

Well, lucky for you, there’s no need to interpret any graphs to get the right answer on this one.

00:45

We’re looking for the reason and individual could have higher carbon-14 content.

00:49

We know, the JFK presidency answer looks tempting.

00:55

But all we really need to do is read the passage carefully to find the answer.

00:59

To be more specific, there’s actually one line in the entire passage

01:03

that pretty much gives you the answer to this one.

01:05

Have you found it yet? OK, we’ll read it for you.

01:09

It’s the line that reads,

01:11

“Nuclear bomb tests during 1955-63 produced large amounts of 14C...”.

01:19

The answer lies within that one sentence.

01:22

Nuclear bomb testing didn’t start till 1955,

01:26

so how could people born before then have more 14C than people born after?

01:30

They couldn’t.

01:31

Which means, our answer is (B).

01:33

And if you chose answers C) or D),

01:35

we just want to let you know that we, here at Shmoop, don’t support ageism.

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