T1L4: Atoms

What is salt described as in the text?

• A natural resource

• A type of metal

• A kind of fruit

• A liquid

What tool can be used to break salt into smaller pieces, according to the passage?

• A salt grinder

• A hammer

• A knife

• A blender

When you grind salt into smaller pieces, what happens to the salt?

• It is still salt, just in smaller pieces

• It turns into sugar

• It changes color

• It becomes water

Why do people sometimes crush salt small enough to pour from a saltshaker?

• Because large chunks are too big to use on food

• Because it tastes better

• Because it changes color

• Because it melts faster

Imagine you have a large chunk of salt and you want to use it on your food. What steps could you take to make it usable, based on the passage?

• Break it into smaller pieces, then grind or crush it until it is small enough to use

• Boil it in water until it disappears

• Paint it to make it look nicer

• Freeze it to make it harder

What is an atom?

• A particle that is the smallest and most basic part of an element.

• A large object made of sand.

• A type of microscope.

• A kind of beach.

Why can't you see atoms with a regular microscope?

• Because atoms are too small.

• Because atoms are too bright.

• Because atoms are too heavy.

• Because atoms are too far away.

What is the atomic theory?

• The idea that everything is made of small particles called atoms.

• The idea that sand is made of water.

• The idea that all elements are the same.

• The idea that atoms are visible to the eye.

If you mix a spoonful of salt with water, what can you conclude about the particles of salt based on what you know about atoms?

• The salt particles break apart and mix with the water, but the atoms remain.

• The salt disappears completely and is gone forever.

• The salt turns into sand.

• The salt becomes a new element.

How are the atoms of each element different from the atoms of every other element?

• Each element is made up of only one kind of atom.

• All elements have the same kind of atom.

• Atoms of different elements are always the same size.

• Atoms can be seen with a regular microscope.