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ACT Science: Research Summary Passage Drill 2, Problem 3. Why is the salt left behind in the distillation chamber after boiling?
ACT Science: Research Summary Passage Drill 2, Problem 2. Why is the filter paper effective at removing sand from the water?
ACT Science: Research Summary Passage Drill 2, Problem 5. What do you think the student did wrong?
ACT Science 1.1 Research Summary Passage 344 Views
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Description:
ACT Science: Research Summary Passage Drill 1, Problem 1. What is the method used by the scientists in this experiment?
Transcript
- 00:03
Here’s your Shmoop du jour, brought to you by the waggle dance.
- 00:07
Enjoyed by honey bees and grandparents the world over.
- 00:10
Here’s a passage about honey bee communication.
- 00:13
It’s pretty sweet.
- 00:29
And our question: “What is the method used by the scientists in this experiment?”
Full Transcript
- 00:43
This question seems pretty simple. It’s just asking us what the scientists did,
- 00:48
so let’s take them one by one. Option A:
- 00:51
Protein gel electrophoresis <<uh-leck-troh-FOR-uh-siss>>.
- 00:54
This is a technique to analyze proteins in a fluid.
- 00:57
It’s also not mentioned anywhere at all in the passage.
- 01:00
So, nice try, test people.
- 01:02
Option B: The waggle dance.
- 01:04
While we don’t know what the scientists do in their free time,
- 01:07
we know that it was the BEES-- not the scientists--
- 01:10
who did the waggle dance during this study. It’s not B.
- 01:13
Option C: Chromatography.
- 01:15
This sounds more likely, and indeed, the passage states
- 01:19
“the scientists generated a chromatogram <<cro-MAT-uh-gram>>.”
- 01:22
Sounds like we hit the bullseye. Let’s make sure.
- 01:25
Option D.
- 01:26
Option D is honey extraction.
- 01:28
Hmm, maybe they did that afterwards, but it certainly wasn’t part of the study.
- 01:32
So C’s our answer, as in ‘Can you hand me some ointment?’
- 01:36
Careful of those stingers.
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