

Chemical Reactions in Action with Professor Egghead Science Academy
Interactive Video
•
Chemistry, Science, Physics
•
4th - 5th Grade
•
Practice Problem
•
Hard
Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of wearing glasses during the 'Genie in a Bottle' experiment?
To look stylish
To protect the eyes from steam
To see the reaction better
To prevent the smell
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of the catalyst in the 'Genie in a Bottle' experiment?
To speed up the reaction
To cool down the reaction
To change the color of the solution
To make the solution more viscous
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the rocket experiment, what is the main gas produced that propels the rockets?
Nitrogen
Carbon dioxide
Hydrogen
Oxygen
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main purpose of flipping the container upside down quickly in the rocket experiment?
To mix the chemicals thoroughly
To create pressure for propulsion
To prevent the reaction from starting
To ensure the cap stays on
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary chemical reaction occurring in the 'Elephant Toothpaste' experiment?
Neutralization
Decomposition
Combustion
Sublimation
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is the 'Elephant Toothpaste' reaction considered exothermic?
It releases heat into the surroundings
It produces light
It absorbs heat from the surroundings
It changes color
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the two products formed when hydrogen peroxide decomposes in the 'Elephant Toothpaste' experiment?
Water and carbon dioxide
Water and oxygen
Hydrogen and oxygen
Hydrogen and carbon dioxide
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