Is the Eiffel Tower always the same height?
Yes, it is.
It gets a little taller in the summer because of the heat
It gets a little taller in the winter because of the cold
It gets a little taller in the winter because of the heat
A diamond is a...
Piece of ice
Gas
Liquid
Crystal
Materials can melt into liquid as they _____ __ , and freeze solid as the get ____
heat up - heat up
colder - colder
colder - heat up
heat up - colder
How can you get salt out of a cup of salt water?
Water evaporation
A material's properties decide what it's ___ for
useful
using
usefully
use
Does salt disappear magically when you put it in water?
No, it dissolves
Yes, it does.
No, it transforms into water because of its components
Which change is ireversible?
Cooking an egg
Melting ice
Turning water into ice
Going to sleep
What does it mean when we say that a material is 'synthetic'?
It's made by humans
It's made by aliens
It can't be made by humans
It can be found in nature
Metal is very good at ____ heat
Erasing
Conducting
Eating
Making
What do you think we should do to fix the plastic bags issue?
...
What is your favorite science subject? Why?
...
When a warm material touches a cooler one, heat spreads from one object into another. True or false?
True
Our hair is as strong as...
The Moon
Aluminium
Steel
Iron