What is the purpose of the demonstration in the video?

Temperature Effects on Molecular Movement

Interactive Video
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Physics
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6th - 7th Grade
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Hard

Patricia Brown
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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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