Name____________________________
Midterm Review- Study Guide
Define:
Sound Waves - waves of energy caused by vibrations in the air
Seismic Waves -waves of energy caused by the sudden breaking of rock within the earth
or an explosion
Light Waves - billions of tiny particles called photons. These photons travel from one
place to another in waves.
Water Waves -waves of energy caused by vibrations on water
Groups/Families (Periodic Table) - vertical columns on the periodic table
Periods (Periodic Table) - Horizonal rows on the periodic table
Carbon Dioxide - a colorless, odorless gas
Carbon Monoxide - a flammable and highly toxic gas
Copper Oxide - A black crystal
Decide if each situation shows energy being transferred (Y – Yes, N –No)
Pencil sitting on desk __N__
Rock thrown into water
__Y__
Waves hitting the shore __Y__
Earthquake destroying a
house __Y__
Strumming a guitar _Y___
Person Talking __Y__
Cell phone vibrating __Y__
Paper sitting in a recycle bin
_N___
What types of properties are each of the following? (P-Physical, C-Chemical)
Ability to burn _C___
Evaporating __P__
Rusting of Iron _C___
Melting _P___
Color __P__
Reacting _C___
What types of changes are the following? (P-Physical, C- Chemical)
Filling a balloon with hot air _P___
Freezing a glass of water in the
freezer __P__
Plant collecting sunlight and turning it into food _C____
Dog ripping up
homework _P___
Water Boiling __P__
Candle Wax melting __P__
Car Rusting _C___
Windowing Shattering
_P___
How are families organized on the periodic table? by similar properties
What process occurs within the sun? Fusion
The Sun produces what two types of energy? Electromagnetic Enegy, Radiation
The nuclear fusion reaction that powers the Sun involves __4____ protons that fuse
together to make ____1__ nucleus of helium.
Only about _______1/2___________ of the amount of energy from the Sun that
reaches Earth’s atmosphere makes it to Earth’s surface.
What is the smallest component to make up an element?
Atom
How can you tell a chemical change has occurred?
Color change, release or absorption of energy, odor released, gas or solid produced,
cannot be reversed by physical means
List all of the very reactive elements.
Group 1 and group 7 on the periodic table
Draw each molecule:
1. Carbon Dioxide
2. Water
3. Table Salt
Na
Cl
Label these properties as chemical (C) or physical (P).
combustibility __C___
density __P___
malleability __P___
tendency to corrode __C___
weight __P___
volume _P____
failure to react _C____
melting point _P____
ductility __P___
odor __P___
texture __P___
flammability _P____
What is the smallest component to make up an element? Atom
How can you locate groups (families) on the periodic table? Vertical Columns
How can you locate periods on the periodic table? Horizontal Rows
List all of the very reactive elements? (6) (What Groups/Families?)
Group 1 and Group 7
List all of the metalloids.(8) (What Group/Family?)
Along the stair step
List all of the non-reactive gases. (6) (What group/family?)
Group 8
List all of the highly reactive non-metal. (5) (What group/family?)
Group 7
List all of the reactive metals, but less reactive than an Alkali. (6) (What
group/family?)
Group 2
Is hydrogen considered an alkali metal?
No
Define
Sublimation - When a substance goes directly from a solid to gas
Condensation - When a substance changes from a gas to a liquid
Vaporization - When a substances changes from a liquid to a gas
Deposition - When a substance changes from a liquid to a solid
Change of State- When matter changes from one state to another. (solid, liquid, gas,
plasma)
Boiling Point- The temperature in which a liquid changes to a gas
Define the type of change ( P- Physical, C – Chemical)
Leaves changing colors __C___
Banana browning in the air
__C___
Paper crumbling _P___
Food Spoiling _C____
Car Rusting _C___
Liquid changing to gas
__P__
Salt dissolving in water _P___
Paper Burning _C____
Candle Wax Melting _P___
What are the properties of:
Carbon Dioxide - a colorless, odorless gas
Carbon Monoxide - a flammable and highly toxic gas
Iron Oxide - SKIP
Oxygen - A colorless, odorless, tasteless, non flammable gas