Assemble/Disassemble
Which can not be taken apart?
A) a puzzle after it is assembled
B) a building made of connecting cubes
C) cookie ingredients after they are bake
C) cookie ingredients after they are bake
Can this change be reversed?
Water being boiled
Yes, you can cook the water.
Which property best describes both a towel and a brick?
A)flexible
B)rough
C)solid
c) Solid
Which objects can be made out of a set of 12 bricks?
A)paper
B)wall
C)box
B)wall
C)box
Can this change be reversed?
Cooking an egg
No, you cannot uncook the egg or return it to its original form.
Which materials have the ability to absorb water? Select all that apply.
A)towel
B)rock
C)sponge
D)marble
A)towel
C)sponge
An ice cube melts after it was left in a cup. Which statement explains why this is a reversible change?
A)The water cannot be frozen again.
B)The water can be frozen into an ice cube.
C)The water will weigh less than the ice cube did
B)The water can be frozen into an ice cube.
Can this change be reversed?
A paper is burned
No, you cannot unburn the paper or return it to its original form.
Anna is building a bridge for her toy cars. She wants the bridge to be able to hold many cars. She is choosing a material to use to build her bridge. What property is most important for Anna to think about?
A)color
B)texture
C)strength
D)absorbency
C)strength
Which item can be taken apart and the parts made into a smaller object?
A)rock
B)toy car
C)puddle of water
B)toy car
Can this change be reversed?
Melting a chocolate bar
Yes, you could re-shape it by cooling it.
Emma is making a toy. She wants the toy to be very flexible. She tests different materials to see how easily each one bends. Here is what she finds:
Glass -does not bend
Rubber - bends very easily
Wood - breaks instead of bending
Metal - does not bend
Which material should Emma use for her toy? A)wood B)glass C)metal D)rubber
Rubber
A puzzle and a tower made with wood blocks can be assembled and disassembled. What do these objects have in common?
A)They are made out of the same material.
B)They are the same size.
C)They are made of smaller pieces that can be put together and taken apart.
C)They are made of smaller pieces that can be put together and taken apart.
Can this change be reversed?
Folding a shirt
Students tried to roll two different shaped blocks. They counted how many times each block rolled:
Square - 2
Round - 12
What does the data tell you about the shape of blocks?
A)The shape of the block does not matter.
B)The shape of the block changes when it is rolled.
C)The shape of the block affects how many times it rolls.
D)The shape of the block does not makes the block roll faster or slower.
C)The shape of the block affects how many times it rolls