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Laabri

21-22 MM 1.4

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Last updated about 13 hours ago
22 Nsɛmmisa
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Exit Ticket

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Asemmisa {{asɛmmisaAhyɛnsode}}
1.

If the dye (ink) is a substance, what do you think will happen?

Asemmisa {{asɛmmisaAhyɛnsode}}
2.

If the dye is a mixture, what do you think will happen?

Asemmisa {{asɛmmisaAhyɛnsode}}
3.

Are the water molecules and molecules in the paper towel attracted to each other?

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4.

Do you think water molecules are attracted to each other (other water molecules)?

Asemmisa {{asɛmmisaAhyɛnsode}}
5.

Are the pieces of pasta in this model the same or different?

Asemmisa {{asɛmmisaAhyɛnsode}}
6.

Are the pieces of pasta in this model the same or different?

Asemmisa {{asɛmmisaAhyɛnsode}}
7.

Are the pieces of pasta in this model the same or different?

Asemmisa {{asɛmmisaAhyɛnsode}}
8.

In this model, each cup contains a different substances (pasta). How many substances (types of pasta) do we have here?

Asemmisa {{asɛmmisaAhyɛnsode}}
9.

In this model, each piece of pasta represents a molecule. What do properties (things we can observe or measure) you notice about the molecules? Type your answer below

Asemmisa {{asɛmmisaAhyɛnsode}}
10.

What properties of the pasta (molecules) caused the pasta mixture to separate when the teacher shook the container? Type your answer below.

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11.

Picture 1

Make observations! What do you see on the chromatography strip?

(HINT: What has happened to the water? What has happened to the food coloring?)

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12.

Picture 2

Make observations! What do you see on the chromatography strip?

(HINT: What has happened to the water? What has happened to the food coloring?)

Asemmisa {{asɛmmisaAhyɛnsode}}
13.

Picture 3

Make observations! What do you see on the chromatography strip?

(HINT: What has happened to the water? What has happened to the food coloring?)

Asemmisa {{asɛmmisaAhyɛnsode}}
14.

Based on these observations, is the food coloring a substance or a mixture?

Asemmisa {{asɛmmisaAhyɛnsode}}
15.

How do you know? Explain your answer for number 14.

Asemmisa {{asɛmmisaAhyɛnsode}}
16.

How many different dyes (colors) do you think make up this mixture?

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17.

Why do you think the molecules in the black food coloring separated on the chromatography strip? Use an observation from the demonstration to explain your thinking:

Asemmisa {{asɛmmisaAhyɛnsode}}
18.

Is this model a substance or a mixture?

Asemmisa {{asɛmmisaAhyɛnsode}}
19.

How do you know?

Asemmisa {{asɛmmisaAhyɛnsode}}
20.

Is this model a substance or a mixture?

Asemmisa {{asɛmmisaAhyɛnsode}}
21.

How do you know?

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22.

Jamie did a chromatography experiment on a marker, and a picture of her chromatography strip is to the right.

Why did the colors separate the way they did?