Preguntas frecuentes
1-Make a Venn diagram with the following sentences.
a) It's a mixture.
b) It's a solution.
c) You can't see separate substances.
d) You can see separate substances.
e) The molecules don't mix.
f) The molecules mix.
g) It is not a pure substance.
1-
2-Physical or chemical?
a) Burning wood.
b) Digesting food.
c) Boiling water.
d) Make yogurt.
e) Melting an ice cube.
f) Freezing water.
2-
3-Copy and complete the table.
Simple/Complex Uses energy from people/Uses electrical energy
1-SCREWDRIVER
2-RADIO
3-HAMMER
4-WASHING MACHINE
3-
4-Read the clues and guess the machines.
a) You watch different programmes on this machine.
b) It has four wheels and carries only a few people.
c) You can clean your house with this machine.
d)You use this machine to speak with people.
4-
5-What type of mixxture are they?
a) Orange juice
b) Fruit salad
c) Vanilla milkshake
d) Strawberry yogurt
e) Pizza
f) Paella
5-