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Worksheets8th Grade Mock SSA Review
Total questions: 77
Worksheet time: 2hrs 38mins
What is the primary difference between repetition and replication in scientific experiments?
Repetition involves repeating the same experiment multiple times by the same person.
Replication involves different scientists conducting the same experiment to verify results.
Repetition and replication are the same processes.
Replication involves repeating the experiment with different variables.
Which of the following is a physical property that is independent of the sample size?
Mass
Volume
Density
Weight
Which of the following best describes the law of conservation of mass?
Mass can be created and destroyed in chemical reactions.
Mass is conserved and remains constant in a closed system.
Mass increases with temperature.
Mass decreases with pressure.
Predict what would happen to the Earth's climate if the interaction between Earth's spheres was disrupted.
The climate would remain unchanged.
There would be no effect on global weather patterns.
The climate could become more extreme and unpredictable.
The climate would stabilize and become more predictable.
What is the role of gravity in the types of forces?
Gravity is a force that repels objects from each other.
Gravity is a force that attracts objects towards each other.
Gravity has no effect on objects.
Gravity only affects objects in space.
Which of the following is a characteristic of plant cells that distinguishes them from animal cells?
Presence of a cell wall
Lack of a nucleus
Presence of mitochondria
Lack of a cell membrane
How do the interactions between body systems maintain homeostasis?
By working independently without affecting each other
By communicating and coordinating responses to changes
By shutting down when not needed
By competing against each other
What is the significance of the Linnaean classification system in biology?
It provides a method to classify rocks and minerals.
It organizes living organisms into hierarchical categories.
It is used to classify chemical elements.
It is a system for classifying weather patterns.
Explain how plate tectonics can lead to surface and subsurface events on Earth.
Plate tectonics have no effect on Earth's surface.
Plate movements can cause earthquakes and volcanic eruptions.
Plate tectonics only affect the ocean floor.
Plate movements stabilize the Earth's surface.
How does the theory of evolution explain genetic variation within a species?
Genetic variation is not explained by the theory of evolution.
Genetic variation is a result of random mutations and natural selection.
Genetic variation is caused by environmental changes only.
Genetic variation is eliminated by natural selection.
What is the primary function of photosynthesis in plants?
To produce oxygen for animals
To convert light energy into chemical energy
To absorb carbon dioxide from the atmosphere
To produce heat for the plant
Ahmya wants to know if fish swim faster to Broadway music or the Blues. She has two fish tanks, with the same kind and number of fish in each. She plays Broadway music for one hour each day for one tank and the Blues for one hour each day for the other. She puts her findings in a scientific journal.
Name the dependent variable in this experiment.
Length of music exposure
Music type
Type of fish
How fast the fish swim
Alisson does an experiment to see how long it takes for a teaspoon of sugar to dissolve in a cup of water. She does this three times and then asks Carpaur to copy her experiment to see if he gets similar result. What is Carpaur doing?
repetition
replication
Sir Isaac Newton was sitting under an apple tree one day when an apple hit him on the head. He wondered why the apple fell and eventually developed what became the law of gravity. Why is gravity considered a scientific law and not a scientific theory?
The law of gravity describes the attraction between particles in the universe.
The law of gravity explains why the particles attract each other.
Gravity is not a law, it is a theory
The law of gravity explains why the apple hit him on the head.
Which of the following can be revised with new evidence?
Theory
Law
Both
Neither
Physical Properties are
chemical changes
are properties that can be observed without changing the matter's identity
are properties that can be observed that change the matter into new matter with new properties
Jack has a rock. The rock has a mass of 14g and a volume of 2cm3. What is the density of the rock?
Density = mass/ volume
Carbon is considered an element, while carbon dioxide is considered a compound. This is because carbon dioxide is ---
a gas at room temperature.
made of two different elements.
given off by green plants.
useful to human beings
Match the Definition With The Matter:
A material that can moves freely.
Liquid
A material that is in a shape that cannot be changed unless it is broken.
Solid
A material, often invisible, where atoms move freely.
Gas
Which of the following could indicate that a chemical change took place?
Change in color
Change in temperature
Formation of Gas
All are correct
During a chemical change, atoms...
Are rearranged to form something new
Stay the same
Arranged to become a liquid
During photosynthesis, the energy from the sun is used to split water molecules into hydrogen and oxygen.
True
False
Where does cellular respiration primarily occur in eukaryotic cells?
Nucleus
Mitochondria
Cytoplasm
All the spheres in the system interconnect and overlap. No sphere works on its own. Consider this diagram below.
In what way do the geosphere and the hydrosphere interact?
The atmosphere provides the geosphere with heat and energy needed for rock breakdown and erosion.
Evaporation from the hydrosphere provides the medium for cloud and rain formation in the atmosphere.
Warm ocean currents cause major weather events, impacting animals and their surroundings.
Water provides the moisture and medium for weathering and erosion of rocks.
Nick's class did an experiment. They put the same amount of water into four paper cups. To start, the temperature was the same in each cup. They put the cups in four different places. They left them for thirty minutes. Next, they used a thermometer to find the temperature of each cup of water. Predict which location should have the highest temperature.
the cup on the desk in the classroom
the cup in a sunny spot on the grass
the cup outside, in the shade of a tree
the cup in the dark corner of the classroom
At the beach, differences in temperatures create wind which transfers heat between the land and the water. The same process is also seen in the ocean as the gulf stream carries heat from the tropics northward. Heat transfer through any intermediate fluid is known as
condensation
conduction
convection
radiation
Conduction occurs more easily between solids and liquids. This is because the particles in gases are
farther apart and move faster.
closer together and move faster.
further apart and move more slowly.
closer together and move more slowly.
You are pulled to the surface of the earth due to the force of _________________
gravity
friction
normal force
contact force
10. A ball rolls down from the top of a grassy hill, reaches the bottom of the hill, continues to roll, and then starts to slow down and comes to a stop. What forces caused this ball's motion?
Frictional force caused the ball to roll down the hill, but air resistance caused the ball to slow down and stop.
Magnetic force caused the ball to roll down the hill, but gravity caused the ball to slow down and stop.
The force of the hill caused the ball to roll down it, but gravity caused the ball to slow down and stop.
Gravity caused the ball to roll down the hill, but frictional force caused the ball to slow down and stop.
The graph shows the distance a student walks down a hall over time. During which time interval was the student moving the fastest?
A
B
C
D
Match the description to the graph:
"The car is stopped."
What part is missing in the hierarchy?
cell
organ
tissue
organism
The basic units or "building blocks" of life are called
cells
molecules
organisms
tissues
What is NOT a part of cell theory:
all cells come from existing cells
all cells have a nucleus
all living things are made of cells
cells are basic unit of structure and function in living things
Which are only found in plant cells?
mitochondria, chloroplasts, small vacuole
nucleus, cytoplasm, and mitochondria
cell membrane, chloroplast, and large vacuole
cell wall, chloroplast, and large vacuole
Which is a function of the cell membrane?
Contain DNA & Control the cell
Control what goes in and out of the cell
Produce energy
Convert energy from sunlight into sugar
How do the respiratory an circulatory systems work together?
The respiratory system removes waste and the circulatory system moves it around.
The respiratory system breaks down food, and the circulatory system moves it around.
The circulatory system brings in oxygen, and the repiratory system moves it around.
The respiratory system brings in oxygen, and the circulatory system moves it around.
Which two body systems work together to support the body and allow the body to move?
circulatory and respiratory
digestive and nervous
skeletal and muscular
circulatory and digestive
The process by which sediment is moved from one place to another. Can be caused by water, wind, ice, and gravity.
Rock Cycle
Deposition
Uplift
Erosion
According to the diagram, how does a sedimentary rock become a metamorphic rock?
Weathering and Erosion
Heat and Pressure
Compaction and Cementation
Melting
Identify the rock type: A volcano erupts and sends lava shooting into the air. This lava cools to form a(n) _____.
Igneous
Sedimentary
Metamorphic
Mineral
Directions: Read the passage "Wegener Observations" in the box below. Use the passage to answer any questions that follow.
In the 1900s, Alfred Wegner collected evidence about earth's past. He discovered belts of coal, which normally form in tropical regions, in Europe and Asia. He also foundglacial deposits and evidence of glacial scrapings on rocks in Africa and India.
Which scientific theory was supported by this evidence?
the theory of spontaneous generation, which states that matter can form and appear anywhere
the big bang theory, which states that at one point the universe was one confined to a single point
the continental drift theory, which states that all of the continents were once joined together and drifted apart to their current locations
the expanding Earth theory, which states that the position and movement of continents is dependent on the volume of the planet increasing
Temperature _____________________ as you go deeper into the earth.
increases
decreases
stays the same
What type of boundary is this?
convergent
divergent
transform
Radio waves, visible light, and x rays are examples of electromagnetic waves that always differ from each other in
amplitude
intensity
temperature
wavelength
This type of electromagnetic wave has different colors of light that all have different wavelengths.
Gamma Rays
Microwaves
Infrared
Visible Light
Increasing the amplitude of a wave ______ the wave’s energy.
Increases
Decreases
Does not change
Waves of energy made by vibrations; require a medium (air, water, or solids) to travel
electromagnetic spectrum
mechanical waves
light waves
sound waves
A mechanical wave cannot travel through...
a vacuum(empty space).
air
water
glass
What energy transformations take place when a battery operated radio is in use?
electrical to chemical to sound
thermal to nuclear to electrical
chemical to electrical to sound
chemical to sound to thermal
Plants turn_______ energy into _______ energy for food.
thermal, mechanical
radiant, chemical
electromagnetic, light
potential, kinetic
The roller coaster cart has the most gravitational potential energy at position
Z
Y
W
X
The transfer of heat in a fluid (gas or liquid) by means of up & down movements through currents...
conduction
convection
radiation
chemicals
What is the concept in which two objects in contact with each other transfer heat until they are equal?
thermal equilibrium
thermal energy
thermal equality
thermal heat
Heat transfers from an area of ____temperature to an area of ___ temperature.
high to low
high to high
low to high
Genes are inherited in pairs, one from each parent.
True
False
Which of these is heterozygous?
Hh
HH
hh
None of these
What is the probability of Aa?
50%
100%
25%
0%
