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Worksheets8TH GRADE SCIENCE ADMISSION TEST GC
Total questions: 71
Worksheet time: 5hrs 38mins
___________ and ___________ in it.
What organelle do plants have surrounding their cells that animals lack?
Cell Wall
Woody Stems
Cell Membrane
Sharp Thorns
When many organ systems work together it can form...
organ
cells
organism
organ system
Which organelle is only found in a plant cell?
nucleus
chloroplast
mitochondria
cell membrane
Directs all cell activities through the DNA located there.
Lysosomes
Nucleus
ribosomes
Mitochondria
You might think of me as the trash collector, but recycler is maybe more accurate. What am I?
mitochondria
vacuole
lysosome
ribosome
What is found in both plant and animal cells but is much larger in plant cells?
Nucleus
Mitochondria
Chloroplast
Vacuole
What is the gel-like substance inside of cells called?
photoplasm
cytoskeleton
photosynthesis
cytoplasm
Which organ system takes in oxygen and releases carbon dioxide?
Chemical system
Respiratory system
Circulatory system
Endocrine system
The digestive system converts food into usable
nutrients
muscles
energy
Plants use the sunlight to make their own food. Therefore, plants are
Producers, which produce energy for the rest of the ecosystem
Consumers, consuming other living things in an ecosystem
predators, top of the food chain
Which of the following is an example of a predator?
Wolf
Owl
Snail
Plant
Abiotic or Biotic: An insect
Abiotic
Biotic
Abiotic or Biotic: Water
Abiotic
Biotic
What Is natural selection?
living things adapt to their environment to survive and produce more offspring
Living things eat and hunt lesser creatures so they are not the one eaten
The way natural works on its own
Changes in physical structure, function, or behavior that allow an organism to survive
Adaptation
Mutation
Camouflage
Interdependence
Coloring of markings that help or organism blend in with its surroundings
Adaptation
Trait
Camouflage
Mutation
How do folded mountains form?
They form when plate boundaries diverge.
They form on the continent side of convergent boundaries.
They form when plates collide or push against each other.
They can form several different ways.
conclusion can be drawn.
What is a example of lab safety?
Keep your hair down
Eat a snack before an experiment
Keep your goggles on at all times
Play around the equipment
What is Newtons 3rd law?
Everything has an equal an opposite reaction
An object in motion stays in motion
an object in rest stays in rest
F=ma
What makes an electromagnet?
A battery
A solenoid and nail
A battery, a nail, and a solenoid
A nail and a cookie
What is The Doppler Effect?
a law stating that the red shifts in the spectra of distant galaxies are proportional to their distance
an increase in the frequency of sound, light, or other waves as the source and observer move toward each other.
What is a Longitudinal Wave?
A wave that vibrates the medium in the same direction in which the wave travels
A wave that vibrates the medium at right angles, or perpendicular to the direction that the wave travels.
What is a Vector
a measurement with magnitude and electricity
a measurement with acceleration and direction
a measurement with magnitude and direction
a measurement with gravity and direction
The process by which hot and cold air are transferred in the atmosphere is
conduction.
convection.
insulation.
radiation.
Microwave ovens heat food through the process of
conduction.
convection
radiation.
stratification
Heat is transferred from the heating element to the pot to the boiling water. What is the MOST likely method of heat transfer?
circulation
conduction
convection
radiation
Burning logs in the fire place produce heat energy. The dog gets warm from the fire when heat energy is transferred by
the air.
radiation
conduction
the flames.
Which observation would be evidence that heat was transferred by radiation?
A person feels colder when the wind is blowing.
A pan on a stove heats up the food placed in it.
Warm air in the kitchen rises to the second floor of the house.
A car with the windows rolled up gets very hot on a summer day.
Which is an example of a physical change?
Mixing blue and yellow paint to create green paint
Adding water and yeast to bread dough in order to make it raise.
Mixing two liquids together in a test tube and the tube becoming warm.
Mixing two liquids together in a test tube and the tube becoming warm.
What MUST ALWAYS be true for a chemical reaction to occur?
There must be a catalyst present.
The system must be at a high temperature.
The reactants’ concentrations must be high.
The reactant particles must effectively collide.
This flask originally held some copper wire and a clear solution of nitric acid. The two substances reacted and produced a brown gas and a blue solution. This reaction cannot be reversed. Evidence of a chemical reaction is shown by
ice forming.
steam rising.
the formation of a gas.
a change in state from a solid to a liquid.
What is the name of this method, shown in the image, used to separate certain mixtures, like sugar and water?
evaporation
floatation
magnetism
sifting
Which statement best describes the motion of the object plotted in the graph?
The object accelerated because the distance traveled increased at a steady rate.
The object traveled at a constant speed because of forces acting on the object.
The object accelerated because it traveled in the same direction throughout the investigation.
The object slowed down as it traveled uphill because of the forces acting on the object.
A stream that runs into a lake cuts across a crop field. A new fertilizer is used in the field that has increased the nitrogen and phosphorus concentrations of the soil.
How will these increased nitrogen and phosphorus concentrations affect the ecosystem of the lake?
increase shorbird nesting
increase in algae population
increase in fish population
increase in oxygen concentration
Identify the parts of the food chain that will most likely be negatively affected if insecticides are applied to producers? Select all your answers.
Sun
Grass
Grasshopper
Shrew
Owl
A model of Earth, the Mon, and Sun is shown.
Which movement of the model displays an event that takes about 28 days?
Earth rotates once on its axis.
The Moon revolves once around the Sun.
The Sun rotates once on its axis.
The Moon revolves once around Earth.
The picture shows students eating a picnic lunch. Choose all of the items that show a chemical change.
ice melting in glass
apple slices turning brown
condensation on glass
digesting food
Which of these is most likely part of an action plan for people who have been warned of a heat advisory?
lie down on the ground in a ditch or other low area
stay in an interior room of a well-constructed building
seek high ground away from rivers and streams
drink plenty of fluids and wear light-colored clothing
The diagram shows the operational set up of a dry steam power plant and how energy is provided to residents.
Which energy transformation best applies to the dry stream power plant and the energy provided to residents?
heat --> electrical --> mechanical
heat --> mechanical --> electrial
light --> electrical --> mechanical
mechanical --> heat --> light
Which answer below shows the parts of the waves in the correct order?
amplitude, frequency, wavelength
wavelength, amplitude, frequency
frequency, wavelength, amplitude
amplitude, wavelength, frequency
wavelength, frequency, amplitude
Which statement describes how one part of the solar system most likely formed?
The Sun formed from a large collection of particles at the center of the solar nebula.
Earth formed from the nucleus of a large comet merging with a meteor.
Jupiter formed from the collision of two asteroids.
The Moon formed from a cloud of gases.
The chart shows information about different climate regions.
Which biome is best suited for plants that grow well in cold, dry climates?
temperate grassland
desert
tundra
taiga
Which of these is an example of a physical change?
wood burned into ash
baking soda mixed with vinegar
rock salt broken into smaller pieces
sugar in plants made by photosynthesis
A researcher measures and records the temperature of the brakes when a car stops at different speeds.
What form of energy transfer does this data show?
from mechanical energy to potential energy
from potential energy to thermal energy
from kinetic energy to potential energy
from kinetic energy to thermal energy
