CH 14 Study Guide
Anything that takes up space and has mass________Matter______________
The amount of space an object takes up_______Volume________________
The smallest particle that still behaves like the original matter it came from_______Atom____________
The measure of how closely packed an object’s atoms are________Density________________
The ability or tendency to float in water____Buoyancy_______________
A _____Solid________is matter that has a defined shape and will not lose its shape.
A _____Liquid________ is matter that will take the shape of any container it is placed in put has a fixed volume.
A ____Gas______ is matter that does NOT have a fixed shape or volume but will completely take up all the space in a container.
Draw a picture to show what the particles look like in the 3 states of matter:
Solid Liquid Gas
A combination of two or more substances_______Mixture____________________
A mixture in which all parts are mixed evenly_________Solution_________________
A change in size or shape and often can be reversible________Physical Change____________________
A change in which a new substance is formed_______Chemical Change______________________
Label the following examples as “P” for physical or “C” for chemical
Mowing the grass_______P_________
A rusting bicycle_______C__________
Melting butter for popcorn______P___________
Separating sand from gravel_______P__________
Squeezing oranges to make orange juice________P__________
Frying an egg______C_________
Water evaporates from a lake_________P___________
Water evaporates into steam_______P_________
A popsicle melting_________P__________
Food is digested in the stomach________C__________
More matter can be added easily to a container full of matter in which state? _____Gas_________
When a gas changes into a liquid_______Condensation___________________
When a liquid changes into a gas__________Evaporation__________________
What are 3 signs that something has gone through a chemical change:
1) Color Change
3) Temperature change or formation of bubbles
Suppose you have two pieces of wood. You carve one of them to make a wooden figurine. You throw the other piece of wood in the fireplace to burn for warmth. Both pieces of wood undergo a change. Infer what kind of changes each piece of wood underwent. Explain your reasoning.
Making a wooden figuring would be a physical change…..Burning a piece of wood would be a chemical change as a new substance is made.
Explain what the particles look like in the three states of matter:
Solid- Particles locked into place.
Liquid- Particles are close together, but can move easily
Gas- Well separated, flow easily