C7-L5-D7-USHNA-SCI-
Authored by MAHENDER ALGOT
Science
7th Grade
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14 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Which of the following is a physical change?
Rusting of iron
Melting of ice
Burning of paper
Cooking of chapati
Tags
Medium
Quick
Vidhyarthi
L7F4Q
Describe_physical_changes
2.
OPEN ENDED QUESTION
2 mins • 10 pts
Explain why melting of ice is considered a physical change.
Evaluate responses using AI:
OFF
Tags
Moderate
Easy
Acharya
L6M9C
Identify_physical_changes_no_new_substances
3.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Which observation best shows a chemical change?
Water boiling
Wax melting
Wood burning
Ice freezing
Tags
Medium
Quick
Vidhyarthi
L3T6Y
Recognize_irreversible_changes
4.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
If iron is left in moist air and rust forms, why is this a chemical change?
The shape of iron changes
A new substance (rust) is formed
The iron becomes wet only
The process is reversible
Tags
Medium
Moderate
Chanakya
L5B9S
List_properties_changing_during_changes
5.
MATCH QUESTION
1 min • 10 pts
Match the type of change with its property:
Often irreversible
Physical change
No new substance formed
Chemical change
--
--
Tags
Moderate
L2K8Y
Differentiate_observable_vs_inferred_changes
Challenging
Maurya
6.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Which statement is true?
Both physical and chemical changes form new substances
Both are always reversible
Physical changes don’t form new substances; chemical changes do
Physical changes always require heat
Tags
Medium
Quick
Vidhyarthi
L3H7N
Identify_recoverable_material
7.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Which of these is a chemical change?
Boiling water
Cutting paper
Curdling of milk
Dissolving sugar in tea
Tags
Medium
Quick
Vidhyarthi
L3T6Y
Recognize_irreversible_changes
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