Key Vocabulary
mix
Mix means to combine two or more things.
mixture
A mixture is two or more kinds of matter put together.
separate
Separate means to keep things apart from each other.
dissolve
Dissolve means to put something into a liquid and make it seem to disappear. plop. fizz.
tear
Tear means to separate or be separated by force. Be torn.
burn
Burn means to destroy with fire.
ash
After burning, ash is the material that is left.
fold
to bend so that one part covers the other.
Exercise
Match each word with its definition:
- to destroy with fire. (burn)
- two or more kinds of matter put together. (mixture)
- to put something into a liquid and make it seem to disappear. (dissolve)
- to keep things apart from each other. (separate)
- to separate or be separated by force. (tear)
- to combine two or more things. (mix)
Kinds of Mixtures:
Sometimes when you mix things together, it is easy to pick them apart. The things in the mixture do not change.
Sometimes when you mix things together, it is hard to separated them. Some things will dissolve into the liquid.
True of False
| Statement | True or False |
|---|---|
| Separate means to destroy with fire. | F |
| A mixture is two or more different things put together | T |
| When a solid dissolves into a liquid, the solid and the liquid are easy to separate | F |
Reading passage
Matter can change in many ways. You can tear, bend, or fold a solid. The solid will look different, but it is still the same thing. However, matter can change into something else.
When you burn wood, it changes into ash. You can mix things and make a mixture. A mixture is two or more kinds of matter put together.
When you mix solids, they don’t change and they are easy to separate. But some mixture are hard to separate.
When you put a solid into a liquid, some solid will dissolve and make a mixture. If you put sugar into hot water, it is hard to separate the sugar from the water.
Reading skill
Main Idea and Detail
Matter can change in many ways.
You can cut, tear, bend, or (fold) a solid. The solid is still the (same)
When you (mix) solids, they are easy to separate.
Some solids will (dissolve) in liquids.
Comprehension
- What is the matter left when something ahs fully burned? (ash)
- When you mix two solids together, the solids (do not change).
- If you dissolve a solid in water, it is (hard to separate the solid and the water)
- If you fold a piece of paper, it will (look different, but it is still paper).
source
From American Textbook Reading Science 15 38:57