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