Show:
Mixtures
Solutions
Physical & Chemical Changes
States of Matter
Vocabulary
100
Trail mix, chocolate chip cookies and pizza are examples of this type of mixture.
What is a heterogeneous mixture.
100
__________ is the universal solvent.
What is water.
100
Changing from one state of matter to the other is a ____________ change.
What is physical.
100
A substance that has a fixed volume and a fixed shape is a(n) ________.
What is a solid.
200
A solution is another name for this type of mixture.
What is a homogeneous mixture.
200
What is the solute and solvent in the following solution: Soda pop - syrup, water and CO2 gas
What is syrup and CO2 gas are the solutes and water is the solvent.
200
A liquid has ___________. a. a fixed volume and a fixed shape b. no fixed volume and a fixed shape c. a fixed volume and no fixed shape d. no fixed volume and no fixed shape
What is a fixed volume and no fixed shape.
300
Whether a substance is a solid, liquid or gas depends on how close its atoms are to one another and _______. a. the volume of each atom b. how much matter the atoms have c. how free the atoms are to move d. the size of the container
What is how free the atoms are to move.
400
Contrast the molecules in a gas with those of a liquid and a solid.
What is gas molecules are far apart compared with the molecules in a solid or a liquid. the amount of space between has molecules varies with the size of the container.
500
List the 5 signs that a chemical change has taken place.
Color Change Precipitate formation Gas Heat/Combustion Odor
500
If you place a solid rubber ball into a box, why doesn't the ball change its shape to fit the container?
What is the ball is a solid; the molecules are fixed in place and cannot move easily.