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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 1.3 Research Summary Passage 207 Views
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ACT Science: Research Summary Passage Drill 1, Problem 3. What is the time course of the experiment?
Transcript
- 00:03
Here's your Shmoop du jour, brought to you by Time, a subsidiary of Space-time Continuum, Inc.
- 00:10
"Time: It makes matter matter."
- 00:15
Here's a passage about an experiment performed on the communication of honey bees.
- 00:23
And our question is: "What is the time course of the experiment?"
- 00:28
Here are the potential answers...
Full Transcript
- 00:32
Sounds pretty straightforward. This question just wants to make sure that we know how to
- 00:36
understand the experiment that took place.
- 00:39
So where can we find how long the experiment took?
- 00:42
That information could be present in the text of the passage,
- 00:45
but to be real, we're not seeing it here.
- 00:48
"Sampled the air..." yada yada... "Waggle dancing..." et cetera... Nope.
- 00:51
The passage isn't specific about how long it took.
- 00:54
But ah, wait! We've also got a figure full of experiment data.
- 00:58
In fact, the very tiniest numbers at the bottom are our guide to the horizontal time axis.
- 01:03
Hang on, let's try something we saw on TV.
- 01:06
Zoom... and enhance.
- 01:08
Zoom... enhance.
- 01:09
Zoom....
- 01:10
Enhance.
- 01:11
So, our answer was in the figure. The study clearly went on for more than 18
- 01:16
minutes, and the only possible answer that's longer than 18 minutes is option D: 19 minutes.
- 01:21
Have to hand it to the chromatographers for basically sniffing a beehive for 19 minutes.
- 01:26
Last time we sniffed something for that long, there was a pizza in the oven...
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