States of matter
What are the three states of matter?
Solid, liquid, gas.
The amount of mass in a specific volume
Density
Name two objects made of a soft material
Pillow, cushion, cotton, teddy...
What are some man-made materials?
Glass, plastic, paper...
What are the two types of forces?
Contact force and non-contact force
Do solids have a fixed shape and volume?
Yes
Which object has a greater mass? A cork ball or a steel ball?
A steel ball
Give two examples of a flexible material
Rubber, paper, cotton...
What are some of the properties of plastic?
Hard and opaque, soft and transparent, flexible or rigid
When objects touch and insert force on each other it is called...
Contact force
Anything with mass and volume
Matter
If the object inside a container of water is denser than the water, will it float or sink?
Sink
Name two objects made of a transparent material
Glass, window, bottle of water, reading glasses...
What are some natural materials?
Wood, cotton, wool...
Magnetism and gravity are examples of .... force.
Non-contact
The amount of matter in an object
Mass
Do denser liquids go to the top or bottom of a container?
Bottom
Give two examples of an opaque material
Wood, metal, plastic...
What are some properties of steel?
Hard, strong, rigid, opaque...
It is the force that pulls objects towards the Earth
Gravity
The amount of space an object occupies
Volume
If the solid object is denser than the water, it sinks. This is called...
Buoyancy
Name two objects made of a fragile material
Glass, window, mirror...
True or false: Cotton and linen are made from plants.
True
True or false: Forces can change the shape of an object
True