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WorksheetsEOY TEST REVIEW 25
Total questions: 79
Worksheet time: 40mins
Which scientist is credited with coining the term "cell" after observing cork under a microscope?
Robert Hooke
Anton van Leeuwenhoek
Matthias Schleiden
Theodor Schwann
What is mutualism?
A relationship where both organisms benefit
A relationship where one organism benefits and the other is harmed
A relationship where one organism benefits and the other is unaffected
A relationship where both organisms are harmed
Which of the following is a biotic factor in an ecosystem?
Water
Sunlight
Soil
Plants
Which statement best describes the cell theory?
All living things are made of cells, cells are the basic unit of structure and function, and all cells come from pre-existing cells
All living things are made of tissues, tissues are made of organs, and organs are made of cells
All living things are made of atoms, atoms are the basic unit of life, and all atoms come from cells
All living things are made of molecules, molecules are the basic unit of structure, and all molecules come from cells
Which of the following is an example of parasitism?
A bee pollinating a flower
A tapeworm living inside a dog
Birds eating insects off a buffalo
Two lions hunting the same prey
Which abiotic factor would most likely limit the growth of plants in a desert ecosystem?
Abundant sunlight
Limited water
Rich soil
High humidity
Explain how the discovery of the microscope contributed to the development of cell theory.
It allowed scientists to see and study cells, leading to the understanding that all living things are made of cells
It helped scientists discover gravity
It allowed scientists to see atoms
It proved that all living things are made of molecules
A remora fish attaches itself to a shark and eats leftover food scraps, but the shark is not affected. What type of relationship is this?
Mutualism
Parasitism
Commensalism
Competition
A group of deer in a forest compete for the same food source. What type of factor are they competing for?
Abiotic
Biotic
Chemical
Physical
Why are cells considered the basic unit of structure and function in living organisms?
Because all living things are made of atoms
Because cells carry out all the processes necessary for life
Because tissues are made of cells
Because cells are the largest part of an organism
Which of the following is an example of competition in an ecosystem?
Two birds sharing a nest
Two plants growing close together and using the same sunlight
A bird eating a worm
A bee pollinating a flower
Which of the following best describes a predatory relationship?
One organism benefits, the other is harmed
Both organisms benefit
One organism eats another for food
Both organisms are harmed
A pond ecosystem has limited sunlight due to overhanging trees. Predict how this might affect the population of algae in the pond.
The algae population will increase
The algae population will decrease
The algae population will stay the same
The algae will become carnivorous
A scientist observes that all cells come from pre-existing cells. Which part of the cell theory does this support?
All living things are made of cells
Cells are the basic unit of structure and function
All cells come from pre-existing cells
All cells are made of tissues
If two species of birds eat the same type of insect in a forest, what type of relationship do they have?
Mutualism
Parasitism
Competition
Commensalism
Which of the following is an example of an abiotic factor affecting an ecosystem?
A virus infecting a population
A drought reducing water availability
A predator hunting prey
A plant growing in rich soil
Describe how the relationship between a clownfish and a sea anemone is an example of mutualism.
The clownfish eats the sea anemone
The sea anemone harms the clownfish
Both the clownfish and the sea anemone benefit from the relationship
Only the sea anemone benefits
A population of rabbits depends on grass for food. If a drought reduces the amount of grass, what is the most likely effect on the rabbit population?
The rabbit population will increase
The rabbit population will decrease
The rabbit population will stay the same
The rabbit population will become carnivorous
Which scientist is known for observing living cells and calling them "animalcules"?
Robert Hooke
Anton van Leeuwenhoek
Matthias Schleiden
Rudolf Virchow
A student observes that in a fish tank, when the water temperature drops, the fish become less active. What abiotic factor is affecting the fish?
Light
Water temperature
Food
Other fish
What causes the Earth to have different seasons throughout the year?
The distance between the Earth and the Sun changes
The tilt of the Earth's axis as it revolves around the Sun
The shape of the Earth
The speed of Earth's rotation
Which term describes the highest high tides that occur when the Sun, Moon, and Earth are aligned?
Neap tides
Spring tides
Low tides
Lunar tides
During which month does the Northern Hemisphere experience the summer solstice?
December
March
June
September
What is the main cause of ocean tides on Earth?
The wind blowing across the ocean
The gravitational pull of the Moon and the Sun
The Earth's rotation
The temperature of the water
Which of the following best explains why the Southern Hemisphere has winter when the Northern Hemisphere has summer?
The Earth is closer to the Sun during Northern Hemisphere summer
The tilt of the Earth's axis causes different hemispheres to receive different amounts of sunlight
The Moon blocks sunlight from reaching the Southern Hemisphere
The Earth's rotation changes direction
If the Moon is at a right angle to the line between the Earth and the Sun, what type of tide will occur?
Spring tide
Neap tide
High tide only
No tide
Explain why the length of daylight changes throughout the year.
The Earth's orbit is a perfect circle
The tilt of the Earth's axis causes different parts of the Earth to receive more or less sunlight as it revolves around the Sun
The Sun moves closer to the Earth
The Moon blocks sunlight
Which scenario would most likely result in the lowest high tides?
When the Sun, Moon, and Earth are in a straight line
When the Moon is at a right angle to the Earth-Sun line
During a solar eclipse
When the Earth is closest to the Sun
A student models the Earth revolving around the Sun with a tilted axis. What does this model help to explain?
The phases of the Moon
The occurrence of eclipses
The change in seasons
The formation of mountains
Which position of the Moon relative to the Earth and Sun causes the highest difference between high and low tides?
First quarter
Third quarter
New moon or full moon
Waxing crescent
A city in the Northern Hemisphere experiences its longest day in June. What season is it experiencing?
Winter
Spring
Summer
Fall
Which of the following best describes a neap tide?
The highest high tide
The lowest low tide
A tide with the least difference between high and low water
A tide that occurs only during a solar eclipse
If the Earth's axis were not tilted, what would be the result?
There would be no seasons
The Earth would stop revolving
The Moon would not orbit the Earth
The Sun would not rise or set
Predict what would happen to the tides if the Moon were farther away from the Earth.
Tides would be stronger
Tides would be weaker
There would be no change
Tides would stop completely
A student wants to model the cause of seasons. Which materials would best help them show the effect of Earth's tilt and revolution?
A flashlight and a tilted globe moving around a lamp
A flat map and a ruler
A spinning top and a mirror
A glass of water and a straw
Which of the following best explains why spring tides are higher than other tides?
The Sun and Moon's gravitational forces combine when they are aligned
The Earth's gravity is stronger during spring
The Moon is closer to the Earth in spring
The Sun's gravity is weaker during spring
A scientist is planning an experiment to show how the tilt of Earth's axis affects seasons. Which variable should they change in their model?
The color of the Sun
The tilt angle of the Earth's axis
The size of the Earth
The number of moons
Given a diagram showing the positions of the Earth, Sun, and Moon, how would you determine if a spring tide or neap tide is occurring?
Check if the Moon is aligned with the Earth and Sun for spring tide, or at a right angle for neap tide
Look for the largest Moon
Find the closest distance between Earth and Sun
See if the Earth is tilted
A student observes that the days are getting shorter and the weather is getting colder. Using evidence, what can they conclude about Earth's position in its orbit?
The Earth is moving closer to the Sun
The hemisphere is tilting away from the Sun, approaching winter
The Moon is blocking sunlight
The Earth is spinning faster
You are given tide data for a month. How could you use this data to predict when spring and neap tides will occur?
Identify the days with the greatest and least differences between high and low tides
Look for the hottest days
Find the days with the most rainfall
Check for the longest days
What is the net force on an object if two forces of 5 N and 3 N act in the same direction horizontally?
2 N
8 N
15 N
1.5 N
Which type of energy is stored in a stretched rubber band?
Gravitational potential energy
Elastic potential energy
Chemical potential energy
Kinetic energy
What happens to energy in a closed system, according to the law of conservation of energy?
It is destroyed
It is created
It is transferred or transformed but not lost
It disappears
A 10 N force acts to the right and a 4 N force acts to the left on a box. What is the net force and direction?
6 N to the left
14 N to the right
6 N to the right
14 N to the left
Which of the following best compares kinetic energy and chemical potential energy?
Both are forms of stored energy
Kinetic energy is energy of motion; chemical potential energy is stored in bonds
Both are only found in living things
Kinetic energy is stored in food; chemical potential energy is in moving objects
When a battery powers a flashlight, which energy transformation occurs?
Electrical to chemical
Chemical to electrical to light
Light to chemical to electrical
Mechanical to chemical to light
A book is at rest on a table. The forces acting on it are balanced. What is the net force on the book?
0 N
1 N
10 N
100 N
Which of the following is an example of gravitational potential energy?
A moving car
A stretched spring
A rock at the edge of a cliff
A battery
In a food web, how is energy conserved as it moves from plants to animals?
Energy is lost and not transferred
Energy is destroyed
Energy is transferred and transformed at each level
Energy is only stored in plants
A box is pulled with a force of 7 N to the right and 7 N to the left. What can you say about the forces?
They are unbalanced; the box will move
They are balanced; the box will not move
The net force is 14 N to the right
The net force is 7 N to the left
Which type of energy is present when a ball is rolling on the ground?
Chemical potential energy
Elastic potential energy
Kinetic energy
Gravitational potential energy
Which statement best describes the difference between elastic and gravitational potential energy?
Elastic is stored in food; gravitational is stored in springs
Elastic is stored in stretched objects; gravitational is stored due to position above ground
Both are only found in living things
Both are types of kinetic energy
Which of the following is an example of energy transformation in an amusement park ride?
Electrical energy to sound energy in a speaker
Chemical energy to light energy in a glow stick
Gravitational potential energy to kinetic energy on a roller coaster
Elastic potential energy to chemical energy in a battery
A 12 N force acts upward and a 7 N force acts downward on an object. What is the net force and direction?
5 N upward
19 N downward
5 N downward
19 N upward
A student observes a plant using sunlight to make food. Which energy transformation is taking place?
Chemical to light
Light to chemical
Electrical to mechanical
Mechanical to light
A diagram shows a box with a 6 N force to the right and a 2 N force to the left. What is the net force?
8 N to the right
4 N to the right
4 N to the left
8 N to the left
Which of the following best describes how energy is conserved in an electrical circuit?
Energy is lost as it moves through the wires
Energy is transformed from electrical to light or heat
Energy is destroyed when the light turns on
Energy is only stored in the battery
A ball is held at the top of a hill. What type of energy does it have due to its position?
Kinetic energy
Gravitational potential energy
Chemical potential energy
Elastic potential energy
A student pushes a box with a force of 9 N to the right, and friction pushes back with 4 N to the left. What is the net force?
13 N to the right
5 N to the right
5 N to the left
13 N to the left
A food web shows energy moving from plants to herbivores to carnivores. What does this demonstrate about energy in ecosystems?
Energy is created at each level
Energy is transferred and transformed, not created or destroyed
Energy is only stored in carnivores
Energy is lost and not used
Which of the following is a physical property commonly used to identify metals on the periodic table?
They are usually brittle.
They are good conductors of electricity.
They are often gases at room temperature.
They do not react with acids.
Which element is classified as a nonmetal?
Sodium (Na)
Iron (Fe)
Oxygen (O)
Aluminum (Al)
Which of the following is a metalloid?
Silicon (Si)
Gold (Au)
Helium (He)
Calcium (Ca)
Which of the following substances will float on water if its density is less than 1g/cm3 ?
Iron ( 7.9g/cm3 )
Wood ( 0.7g/cm3 )
Gold ( 19.3g/cm3 )
Copper ( 8.9g/cm3 )
Which of the following is evidence that a chemical change has occurred?
Melting of ice
Dissolving sugar in water
Production of a gas when vinegar and baking soda are mixed
Breaking a glass
A student observes a color change when two clear solutions are mixed. What does this most likely indicate?
A physical change
A chemical change
A change in state
No change
Which of the following best describes the importance of rare Earth elements in modern life?
They are used in making table salt.
They are essential in manufacturing electronics like smartphones and computers.
They are used to make bread.
They are found in all types of fruit.
If a solid object sinks in oil but floats in water, what can you infer about its density?
Its density is less than both oil and water.
Its density is greater than both oil and water.
Its density is greater than oil but less than water.
Its density is less than oil but greater than water.
A student mixes two clear liquids and observes the formation of a solid at the bottom of the container. What is this solid called?
Solute
Precipitate
Solvent
Solution
Which of the following scenarios best demonstrates a chemical change due to a change in thermal energy?
Water boiling on a stove
Ice melting in the sun
Wood burning in a campfire
Salt dissolving in water
A student is given four unknown elements. She observes that one is shiny, conducts electricity, and is malleable. Based on these properties, how should she classify this element?
As a nonmetal
As a metalloid
As a metal
As a rare Earth element
You are given a sample of an unknown substance. Describe a procedure you could use to determine if it is a metal, nonmetal, or metalloid based on its physical properties.
Test its ability to conduct electricity, observe its luster, and check if it is brittle or malleable.
Taste the substance.
Check if it dissolves in water.
Measure its temperature.
You are given a clear solution. Describe a method to determine if a chemical change occurs when another substance is added.
Observe for color change, formation of a gas, temperature change, or formation of a precipitate.
Smell the solution.
Taste the solution.
Measure the mass only.
A scientist is designing a new smartphone and needs materials that are both lightweight and good conductors of electricity. Which type of element should she consider, and why?
Nonmetals, because they are good conductors.
Metals, because they are good conductors and can be lightweight.
Metalloids, because they are always heavy.
Rare Earth elements, because they are always insulators.
A student mixes two colorless liquids and observes the formation of a yellow solid and a temperature drop. What does this evidence suggest about the type of change that occurred?
A physical change, because a solid formed.
A chemical change, because a precipitate formed and there was a temperature change.
No change occurred.
A physical change, because the liquids were colorless.
Which of the following elements is most likely to be a good conductor of electricity?
Carbon (C)
Silicon (Si)
Helium (He)
Copper (Cu)
Which of the following changes is a physical change?
Cooking an egg
Rusting of iron
Burning of wood
Melting of ice
