Physical Properties
This word names how something feels when you touch it (smooth, rough, soft).
Texture
This state of matter keeps its own shape and does not flow.
Solid
If something feels colder than your hand, we say it has a lower ____.
Temperature
When water becomes ice, we call this process _____.
Freezing
Cutting paper is a type of ____ change because the pieces are still paper.
Physical
This property tells whether something bends or snaps back.
Flexibility
This state of matter takes the shape of its container and can flow.
Liquid
When you touch ice, it feels ____ compared to your skin.
Cold
When ice turns back into water, we call this _____.
Melting
Folding cloth changes its shape but it is still cloth. This is an example of what kind of property change?
Shape
One way to describe how heavy something feels without weighing it.
Heaviness
Which state is water in when it fills a cup?
Liquid
If you warm water on the stove, its temperature does what
Go up
Is melting caused by heating or cooling?
Heating
Sanding a wooden block makes it thinner but it is still wood. Why is sanding a physical change?
Because the material is the same substance but its shape or surface changed
Name two physical properties you could use to tell materials apart.
Color, texture, shape, mass, flexibility, magnetic
Give one example of a solid and one example of a liquid.
Ex. Pencil, Desk, Cup Ex. Water, Juice, Soda
Name one tool we use to measure temperature.
Thermometer
Give one example from daily life of freezing and one example of melting.
Ex. Ice, snow, Ex. Ice cream, popscicle
Give two processes from the list that change physical properties without making a new material.
Cutting, Folding, or Sanding
You have a block that feels cold and a block that feels warm. Which observable property are you using to compare them?
Temperature
Explain how you could tell whether an unknown sample is a solid or a liquid using only sight and touch.
Try to pour it — if it pours, it's a liquid; if it keeps its shape, it's a solid. Also touch to see if it keeps its shape.
A cup of hot chocolate and a bowl of cold applesauce are put side by side. Which has higher temperature and how can you tell?
hot chocolate; it feels warmer when touched carefully or you can measure with a thermometer
Some changes caused by heating can be reversed and some cannot. Give one example of a reversible change caused by temperature (from this unit).
Water. Can be frozen and melted over again.
Explain how you could combine small building blocks to make a new object, and name one physical property you would consider when choosing the blocks
I can snap blocks together to make a toy car; I chose plastic blocks because they are smooth and light (flexibility, texture, or strength are acceptable properties).