Molecules
Anything that has mass and takes up space is called
matter
In which state of matter do molecules stick close together to form a definitive shape and take up a definitive amount of space?
solid
Physical
If I have a teddy bear, a pillow, and some cotton plants, which of the following would be best to add to the group because it shares some of the same physical properties?
a) cup b)chair c)paper d)skirt
D) skirt because it is made of cloth and is soft
Some physical changes cannot be seen without scientific tools. Which tool can be used to help a scientist see a small physical change?
Microscope
Which of these is a collection of materials made of matter?
a)thoughts, feelings, emotion
b)blocks, backpacks, air
c)pencils, wipes, imagination
b) blocks, backpacks, air
If you place a cup of water on a balance with another item and the balance is level, will it still be level in a week? Yes or no and why?
No, the water will evaporate and become lighter than the other object.
Is burning wood a physical or chemical change?
Chemical
All objects are made of materials that have observable...
Which of the following objects can increase in volume?
a) trash can b) balloon c)newspaper d) shoes
Balloon
All objects are made of....
one or more materials
What are the three states of matter?
Solid, Liquid, and gas
What changes when a whole pizza is cut into slices?
It's shape
If I cut a melon into different sized pieces, will it create chemical change or physical change?
Physical
Bill sawed a wooden fence post into 4 pieces. Name one physical property that changed after she sawed the post into pieces.
What state of mater has molecules that flow around each other and take the shape of its container?
Liquid
To turn water into a gas, what do you need to do to it?
Heat it up
A student made a salad by cutting up carrots, peas, and tomatoes. After she tossed the vegetables together, the physical properties of each kind of matter...
a) drastically changed b)increased in volume c)remained the same d)decreased in mass
d) decreased in mass because the vegetables got smaller
A rag is used to wipe water off of a table. What changes when the rag is squeezed?
The texture of the rag (how it feels)
If I have a group of pennies and dimes what are some other objects I can place with the group that have the same physical properties?
quarter, half dollar, coin dollar, any other type of coin
What state of matter has molecules that bounce off of each other and move very quickly, filling the space they are in?
Gas
For water vapor to turn back into a liquid, what needs to happen to the gas?
It needs to cool down
Is melting ice a chemical or physical change?
Physical change
What are two types of physical properties you use to describe an object?
color, shape, size, texture, flexibility, state, luster, etc.
How many materials does it take to make a newspaper?