CH 14 Study Guide

Name______________________

 

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

Image result for particles in solid

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__________

 

Spoiling food_______C__________

 

Fireworks exploding______C___________

 

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__________

 

Copper tarnishing________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

2)      Odor

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