Temperature Effects on Molecular Movement

Temperature Effects on Molecular Movement

Assessment

Interactive Video

Physics

6th - 7th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video demonstrates an experiment comparing the diffusion of food coloring in hot and cold water. The teacher sets up two containers with water at different temperatures, adds food coloring, and observes the rate of diffusion. The hot water shows faster diffusion due to increased molecular movement, while the cold water shows slower diffusion. The experiment illustrates how temperature affects molecular speed and diffusion rates.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of the demonstration in the video?

To measure the pH levels of different water samples.

To show how temperature affects the spread of food coloring in water.

To demonstrate the boiling point of water.

To compare the taste of hot and cold water.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the temperature of the cold water used in the experiment?

32 degrees

55 degrees

180 degrees

100 degrees

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the temperature of the hot water used in the experiment?

180 degrees

150 degrees

100 degrees

55 degrees

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main variable being observed in the experiment?

The amount of water used

The color of the food coloring

The taste of the water

The speed at which food coloring spreads

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does the food coloring behave in cold water?

It changes color.

It disappears completely.

It remains at the top and forms a layer at the bottom.

It spreads quickly and evenly.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What color does the hot water turn when food coloring is added?

Green

Yellow

Orange

Purple

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why does the food coloring spread faster in hot water?

Because the water is more colorful.

Because the molecules move faster in hot water.

Because the food coloring is lighter.

Because the water is less dense.

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