What is the main focus of Lesson 4?

Chemical Reactions and Observations

Interactive Video
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Chemistry, Science, Physics
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9th - 10th 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 learn about the properties of salt water
To understand the uses of a thermometer
To conduct an experiment with aluminum and copper sulfate
To study the effects of temperature on water
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which groups are being focused on in the experiment?
Groups B and C
Groups A and B
Groups C and D
Groups D and E
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the initial step in the experiment?
Observing the color change
Measuring the starting temperature
Combining all ingredients at once
Measuring the final temperature
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How often should the temperature be recorded during the experiment?
Every minute
Every 10 seconds
Every 30 seconds
Every 5 minutes
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is observed as the chemical reaction begins?
The solution becomes solid
No change in the solution
A change in the color of the solution
A decrease in temperature
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What color does the copper sulfate change to during the reaction?
Blue
Green
Red
Yellow
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the experiment?
To find out how much heat is generated by specific amounts of reactants
To measure the density of copper sulfate
To determine the boiling point of water
To observe the melting of aluminum
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