States of Matter
What is the definition of matter?
Any substance that has mass and takes up space
True or false: Color is a physical property of matter?
TRUE
True or false: A physical change is when a new substance is formed or created, and a chemical change is when the substance remains the same
FALSE
Give an example of a conductor
Most metals
What is a mixture?
combination of two or more substances in which the substances keep their identities
or examples such as salad, tacos, colored beads, etc.
What are the 3 states of matter?
Solid, liquid, & gas
Give an example of something that is elastic?
rubber band, bungee cord
TRUE OR FALSE: Chemical changes can be revered
FALSE
Give an example of an insulator
rubber, Styrofoam, glass, plastic, wood, etc.
What is the definition of a solution?
a mixture that has the same composition throughout because its parts are mixed evenly.
The particles in a solid move _______.
Slowly
Give one example of a conductor and one example of an insulator
conductor: metals
insulator: rubber, styrofoam, etc.
Chemical changes may sometimes release an _____.
Odor
True or false: an insulator stops or slows the flow of electricity
TRUE
If I mix water and salt in a cup and leave it out in the sun, the water will most likely ___________.
Evaporate
True or false: Liquids have a definite shape and volume
FALSE; Solids have a definite shape
liquids have a definite volume
What is solubility?
The ability for a substance to dissolve in another substance
Provide an example of a physical change
Provide an example of a chemical change
Answers may vary: Cutting paper, painting a wall, slicing bread, etc. (Physical)
Burning wood, cooking eggs, rusting metal, etc. (Chemical)
How are conductors like bridges?
Bridges allow the flow of traffic and people to get through
Conductors allow electricity to pass through
If Sally has a pitcher of lemonade, how could she separate the solution?
Leave it out in the sun to evaporate
What is the term called when a solid turns into a liquid?
Melting point
What is an alloy?
when metals are melted down and mixed together. They are very strong.
What was the independent variable in our science investigation "What's in the bag?"
The tablet
The amount of space an object takes up
Volume
Food coloring in water is an example of a _________.
Solution