All About Matter
Matter is something that is made of __________. (what did we observe changing in the simulation?)
particles
This state of matter has no definite volume and no definite shape-it spreads out to fit the shape of its container.
Gas
Changes that create new substances with different properties are _______ changes.
chemical
The process of a solid changing into a liquid.
Melting
Combinations of different materials that are physically mixed together. (Think trail mix)
Mixture
Matter is anything that has ___________ and takes up ___________.
weight/mass; space
This state of matter has definite volume and has definite shape.
Solid
Tearing a piece of paper is an example of a _______________.
physical change
Explain the conservation of matter.
The mass stays the same as it was before and after a phase change.
A glass contains 300 grams of water. A student puts 25 grams of sugar in the water. The student then stirs the water until the sugar is no longer visible.
What is the mass of the mixture in the glass?
325 grams
____________ are tiny building blocks of matter.
Particles
This state of matter has definite volume but no definite shape.
Liquid
Frying an egg is an example of a ________________.
chemical change
The process of a gas changing into a liquid.
Energy (heating or cooling) can change the state of ________.
matter
What are the 3 states of matter?
Particles of a solid ______________. (Think particle simulation)
vibrate tightly in their place.
Changes in the form of matter without changing its identity are ________________ changes.
The process of a liquid changing into a gas.
Evaporation
When particles are heated up they move _________.
faster
Particles of gas ____________. (think particle simulation)
move freely around
Particles of a liquid _________. (Think particle simulation)
slide past one another
Boiling water is an example of a ____________ change.
physical
Which investigation shows evidence that the chemical properties of the substances changed?
A. Sand sinks in water when the two are combined
B. Salt dissolves in water when the two are combined
C. Bubbles form when baking soda and vinegar are combined
D. Oil coats the surface of lettuce when the two are combined
C. Bubbles form when baking soda and vinegar are combined
All solutions are mixtures but not all mixtures are solutions. True or false?
TRUE!!! Solutions are made of at least one thing that has fully dissolved into another. Mixtures are TWO or more things mixed together-but all things mixed do not always dissolve.