Toggle Navigation
Games
Blog
News
Class PIN
Join for Free
Sign in
Toggle Navigation
Games
PIN
Join for Free
Blog
Pricing
News
Contact us
Help center
Sign in
Study
Materials' properties, Material Changes, Changes ...
0
%
0
0
0
Back
Restart
Observe the pictures! Rusted iron is chemical change because ....
•The colour , odour , shape or structure of the original materials change. •The new materials formed cannot be changed back to their original forms.
Oops!
Okay!
Which trash bin where we throw the leftover foods?
organic (recyclable waste)
Oops!
Okay!
Mention two example of freezing!
making ice cube, making jelly, freezing the ice cream, etc
Oops!
Okay!
Water begins to freeze at ....
0°C (zero degree Celcius)
Oops!
Okay!
Physical or Chemical Change? Cutting an orange into wedges.
physical change
Oops!
Okay!
Wood that is burning is .... (physical change/ chemical change)
chemical change
Oops!
Okay!
What is the boiling point of water?
100 degree Celcius (100°C)
Oops!
Okay!
What is evaporation?
When water turns into a vapor (water -> gas)
Oops!
Okay!
Mention two correct and safe ways to handle materials and household items!
labelling them properly. using them for their intended purpose. keeping them in suitable places. disposing used materials properly .
Oops!
Okay!
Observe the pictures! What are the properties of the object in the picture? (Mention 2!)
strong, rigid, fixed, electric isolator, heat isolator
Oops!
Okay!
When gases lose heat they will condense into ....
liquids
Oops!
Okay!
Is this an example of a physical or chemical change?
physical change
Oops!
Okay!
What is happening when my ice cream changes from a solid to a liquid?
melting
Oops!
Okay!
Observe the pictures! What are the properties of the object in the picture? (Mention 2!)
flexible, soft, heat isolator, electric isolator
Oops!
Okay!
Which change of state that gains heat?
A and B
Oops!
Okay!
Mention one object that has properties: non-magnetic, hard, rigid, transparent.
window, glass, bowl, etc
Oops!
Okay!
When ice gains heat, it changes to ....
liquid
Oops!
Okay!
Your experience on this site will be improved by allowing cookies.
Allow cookies