Matter & reactions
Which is evidence of a chemical change?
A. Melting ice
B. Boiling water
C. Rust forming
D. Crushing a can
C. RUST forming
What layer contains weather?
A. Stratosphere
B. Troposphere
C. Mesosphere
D. Thermosphere
B. TROPOSPHERE
Which is renewable?
A. Coal
B. Oil
C. Wind
D. Natural gas
C. WIND
Who developed natural selection?
A. Newton
B. Darwin
C. Einstein
D. Mendel
B. DARWIN
Water safe to drink is called:
A. Polluted
B. Potable
C. Contaminated
D. Salty
B. POTABLE
What law states matter cannot be created or destroyed?
A. Gravity
B. Conservation of Mass
C. Thermodynamics
D. Motion
What causes seasons on Earth?
A. Distance from sun
B. Earth’s tilt
C. Moon phases
D. Rotation
B. EARTH's TILT
What energy source uses Earth’s heat?
A. Solar
B. Wind
C. Geothermal
D. Nuclear
C. GEOTHERMAL
What is a trait?
A. Learned behavior
B. Inherited characteristic
C. Environment
D. Mutation
B. INHERITED CHARACTERISTIC
What measures water clarity?
A. pH
B. Turbidity
C. Temperature
D. Oxygen
B. TURBIDITY
A reaction produces a gas and heat. What type of change?
A. Physical
B. Chemical
C. Mechanical
D. Nuclear
B. Chemical
Which process forms sedimentary rock?
A. Cooling magma
B. Heat and pressure
C. Compaction and cementation
D. Melting
C. Compaction and cementation
Burning fossil fuels releases:
A. Oxygen
B. Carbon dioxide
C. Nitrogen
D. Hydrogen
B. CARBON DIOXIDE
Which increases survival chances?
A. Random chance
B. Adaptation
C. Weak traits
D. No variation
B. ADAPTATION
Too many nutrients cause:
A. Clear water
B. Eutrophication
C. Cooling
D. Freezing
B. EUTROPHICATION
If 10g + 15g react, total mass after reaction = ?
A. 20g
B. 25g
C. 30g
D. 10g
Which sphere includes all living things?
A. Atmosphere
B. Hydrosphere
C. Biosphere
D. Geosphere
Which resource is MOST sustainable?
A. Coal
B. Petroleum
C. Solar
D. Natural gas
C. SOLAR
Natural selection leads to:
A. Extinction only
B. Evolution
C. Weather changes
D. Seasons
B. EVOLUTION
Pollution from one source =
A. Nonpoint
B. Point source
C. Natural
D. Biological
B. POINT SOURCE
Which indicates a NEW substance formed?
A. Change in size
B. Change in state
C. Color change with precipitate
D. Breaking apart
What drives the water cycle?
A. Gravity only
B. Sun’s energy
C. Wind only
D. Moon phases
B. Sun's energy
What is a disadvantage of fossil fuels?
A. Cheap
B. Renewable
C. Causes pollution
D. Unlimited
C. CAUSES POLLUTION
Which is an example of adaptation?
A. Broken bone
B. Camouflage fur
C. Learned skill
D. Injury
B. CAMOUFLAGE FUR
Low dissolved oxygen harms:
A. Rocks
B. Fish
C. Air
D. Soil
B. FISH