What's one way to save energy?
T.urn on the light when you leave the room
Leave the frige door open.
Walk or ride a bike instead of driving.
Put paper, plastic, metal and glass in the rubbish.
Which example IS NOT matter.
water
a sound (music)
a cloud
a chair
What's the best way to separate sand and small shells
distillation
sieving
evaporation
filtration
When you cut paper, what type of change is it?
a reversible physical change
an irreversible physical change
a chemical change
Is boba tea a homogeneous mixture, a heterogeneous mixture, or a pure substance?
It's a pure substance
It's a homogeneous mixture
It's a heterogeneous mixture
Which one is a chemical change?
burning paper (combustion)
a glass breaking
colouring on paper
ice melting
What method of separation is this?
evaporation
filtration
sieving
distillation
Which one is a chemical change?
drying your hair
oxidation of metal (rust)
stretching a rubber band
folding paper
When water boils, what type of change is it?
an irreversible physical change
a reversible physical change
a chemical change
Is coffee a homogeneous mixture, a heterogeneous mixture, or a pure substance?
It's a homogeneous mixture
It's a heterogeneous mixture
It's a pure substance
Which one is a thermal insulator?
gold
plastic
steel
aluminium
What state of matter is flour?
solid
gas
plasma
liquid
Which one is a thermal conductor?
wool
cotton
copper
glass
We can divide the word heterogeneous into two parts: hetero.geneous. What does HETERO mean?
the same
pure substance
mixture
different
What state of matter is lava?
plasma
gas
liquid
solid
Which one is a reversible physical change?
baking a cake
ice melting
digesting food
burning paper
Is water a homogeneous mixture, a heterogeneous mixture, or a pure substance?
It's a pure substance
It's a homogeneous mixture
It's a heterogeneous mixture
Is lemonade a homogeneous mixture, a heterogeneous mixture, or a pure substance?
It's a homogeneous mixture
It's a heterogeneous mixture
It's a pure substance
What's the best way to separate spaghetti and water?
sieving
filtration
distillation
evaporation
What state of matter are clouds?
gas
solid
liquid
What does this separate?
a mixture of two solids
a mixture of a solid and a liquid
a solution of a solid and a liquid
a solution to two liquids
What state of matter is oil?
liquid
solid
gas
When water freezes, what type of change is it?
a chemical change
an irreversible physical change
a reversible physical change
What state of matter is honey?
liquid
gas
solid
plasma
When water condenses, what type of change is it?
a reversible physical change
a chemical change
an irreversible physical change
What state of matter is sand?
plasma
solid
liquid
gas
What's the best way to separate ColaCao and milk?
distillation
evaporation
sieving
filtration
We can divide the word homogeneous into two parts: homo.geneous. What does HOMO mean?
different
pure substance
the same
mixture