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WorksheetsTN Science Review
Total questions: 20
Worksheet time: 10mins
F
G
H
J
A
B
C
D
F
G
H
J
Which of these best represents the Earth’s structure?
F
G
H
J
Which of these would be used to measure the mass of a marble?
A
B
C
D
Why is photosynthesis important for plants?
It collects sunlight which is used to make food for plants.
It gets rid of plant waste products.
It changes plant sugar into stronger chemicals.
It helps attract insects to plant flowers.
A comb is rubbed with a piece of wool fabric and placed next to some scraps of paper. The paper moves toward the comb. The movement of the paper is caused by —
chemical energy
magnetic attraction
mechanical energy
static electricity
Which of the following organisms break down dead material and return the substances to the environment?
Grasshopper and worm
Grass and algae
Bacteria and fungi
Snake and grasshopper
Which diagram shows the refraction of light as it enters water from the air?
1
2
3
4
A
B
C
D
Fossils are evidence of living things that were alive many, many years ago and often consist of the skeletons of creatures imbedded in rock. Why don’t fossils contain the animal’s soft tissues, as well?
Because the soft tissues decayed before the fossil could be formed.
Because the rock breaks down soft tissues.
Because the soft tissues were always eaten by scavengers.
Because the rock always smashed the soft tissues flat.
Which process is the foundation for the food web?
Evaporation
Condensation
Photosynthesis
Movement
The island of Guam had no native snake species until the brown tree snake was introduced. What effect did this egg-eating snake have on the native bird populations?
Bird populations were not affected by the snake’s introduction.
Bird populations increased as the birds preyed on the snakes.
Bird populations decreased as the snakes fed on the bird eggs.
Bird populations increased as the snakes eliminated predators.
Which type of energy change is occurring in the pictures above?
Mechanical energy to chemical energy
Potential energy to kinetic energy
Chemical energy to heat energy
Solar energy to nuclear energy
Plants release oxygen into the air as a result of photosynthesis. Which of these do plants need for photosynthesis?
Carbon dioxide
Nitrogen
Methane
Hydrogen
Of the following, which is the correct progression in the food chain?
F
G
H
J
A student is using a pendulum to demonstrate energy transformation. The student pulls the ball back before releasing it. Which list best describes the energy of the ball on the pendulum in each diagram?
1. all potential energy
2. potential energy transferring to kinetic energy
3. kinetic energy transferring to potential energy
1. all kinetic energy
2. kinetic energy transferring to potential energy
3. potential energy transferring to kinetic energy
1. all potential energy
2. kinetic energy transferring to potential energy
3. potential energy transferring to kinetic energy
1. all kinetic energy
2. potential energy transferring to kinetic energy
3. kinetic energy transferring to potential energy
Use the pictures to answer the question. Which two objects transform electrical energy into mechanical energy?
radio and heat pack
television and battery
battery and hair dryer
washing machine and ceiling fan
A student pointed a light at a prism as shown in the diagram. Which statement best explains what the diagram shows?
White light mixes with colors inside the prism.
White light is made up of different colors.
Prisms contain the colors of the rainbow.
Colors let people see objects.
Which statement best explains the conditions that cause volcanoes to form along the northern and southwestern edges of the Pacific Plate?
The movement of material in the mantle causes the formation of new rock in these areas.
The mantle has convection currents that cause the crust of two plates to collide in these areas.
The downward movement of cooling magma causes earthquakes to release energy in these areas.
The collection of magma below the plate boundary causes a subduction zone to form in these areas.
