Properties of Matter
States of Matter
Uses of Energy
Force & Motion
ALL ABOUT SCIENCE
100
Name 6 properties of matter.
Color, odor, texture, size, shape, mass, conductor/insulator, magnetism, ability to sink or float, boiling point, melting point, freezing point
100
Identify the states of matter.
Solid, liquid, gas
100
Name the forms of energy.
Electrical, Mechanical, Thermal, Sound, and Light
100
Give 3 examples of force.
Opening a door, closing a door, pushing/pulling, ball rolling, a rolling ball stops.
100
What is a mixture?
A combination of two or more substances that do not join together to form a new substance.
200
What physical properties will remain the same after your juice has frozen?
Color and mass
200
A solid has _________ shape and __________ volume.
definite, definite
200
When wood is burning, what energy is released?
Thermal and Light
200
I threw a ball up in the air and it fell back to Earth. What caused it to fall back to the Earth?
The force of GRAVITY
200
What is a solution?
A mixture in which the substances are spread out evenly between one another and cannot be told apart.
300
Give an example of a physical change.
Breaking an object, bending an object
300
A liquid has _________ shape and ___________ volume.
indefinite, definite
300
What causes sound?
Vibrations
300
An object that's moving will continue moving until-
a force acts upon it
300
Solution is a special type of ____________
mixture
400
When a substance reaches its boiling point, it changes from a-
liquid to a gas
400
A gas has ____________ shape and ___________ volume.
indefinite, indefinite
400
Provide 3 uses/examples of each form of energy.
Electrical: electronic toys, computers, cars. Mechanical: roller coaster, car, walking. Light: lamp, computer, fire. Thermal: oven, microwave, fire. Sound: guitar, ringtone, car, voice.
400
What is the relation between mass and force?
More force is required to move an object with greater mass.
400
I have a container filled with a mixture of sand and iron filings. What is the best way to separate the substances?
Spread the mixture out onto a smooth surface. Use a magnet to pick up the iron filings and separate them from the sand.
500
When a substances reaches its melting point, it changes from a-
solid to a liquid
500
Identify the boiling point and melting point of water.
100 degrees Celsius, 0 degrees Celsius.
500
What is the difference between REFLECTION and REFRACTION? Give examples of each.
Reflection is the bouncing of light (ex. you see your reflection in the mirror). Refraction is the bending of light. It causes objects to be magnified (ex. eyeglasses, cameras, magnifying lens, microscope).
500
COMPARE and CONTRAST: Balanced vs. Unbalanced forces
Balanced: an object in motion will continue moving at a constant speed. An object that is still will remain stills. Forces are equal. Unbalanced: an object will start moving, stop moving, change speed, change direction, change shape. The forces are NOT equal.
500
How do you know when a substance has completely dissolved in water? (Ex. salt or sugar)
It becomes virtually INVISIBLE. It seems to DISAPPEAR.
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