WorksheetsUnit 2 Revision G2
Total questions: 30
Worksheet time: 19mins
This object is ..............
assembled
disassembled
Take apart an object will change the materials property
Fales
True
Object can be disassembled and rebuild a new object with same materials
Fales
True
This picture show
Assemble
Disassemble
To take something apart is to _________ it.
assemble
disassemble
Hank combined wood and nails to _________________a chair.
assemble
disassemble
A student builds a castle using some building blocks. She takes the castle apart. Describe what else she could build using all the same blocks. Select all that apply.
a bridge that is longer than the castle
a building that is wider than the castle
a tower that is taller than the castle
a house that is smaller than the castle
What material is this house made of?
wood
brick
clay
metal
Which material is hard?
glass
brick
metal
all of the above
Something you can change back.
Something you cannot change back.
When ice melts in the sun, is that change reversible or irreversible?
reversible
irreversible
Burning
Freezing
Melting
Burning
Freezing
Melting
Reversible Change
Irreversible Change
Reversible Change
Irreversible Change
Irreversible Change
Reversible Change
Reversible Change
Irreversible Change
Reversible Change
Irreversible Change
Reversible Change
Irreversible Change
Irreversible Change
Reversible Change
Reversible Change
Irreversible Change
Reversible Change
Irreversible Change
Irreversible Change
Reversible Change
Irreversible Change
Reversible Change
What is a reversible change?
Something you can change back.
Something you cannot change back.
What is an irreversible change?
Something you can change back.
Something you cannot change back.
Which of these is NOT a reversible change?
Tearing paper to small pieces is a _______________ change
Reversible change
Irreversible change
Choose the TWO reversible changes:
The ice cream is left outside. It is now a liquid. What has happened?
The sun made it freeze.
Someone ate it.
The sun made it melt.
