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WorksheetsT2 SCIENCE REVISION
Total questions: 30
Worksheet time: 15mins
1.Look at the picture and state whether the following statements are true or false.
A. i. is in the penumbra region. B. iii. is facing total eclipse. C. iv. and v. are facing partial eclipse. D. ii. is in the penumbra region. E. v. is in the umbra region.
a. A - True, B - True, C - False, D - False, E - True
b. A - False, B - True, C - True, D - True, E - false
b. A - False, B - True, C - True, D - True, E - True
b. A - False, B - True, C - True, D - True, E - True
2. A spotlight shines on a girl on a stage.
A
B
C
D
John dropped a football from the same height onto four types of floors. He measured how high the ball bounced on each floor.
How high was the biggest bounce? On which floor did the ball bounce the least?
A) 100
B) 120
C)130
D) 140
A school is planning to teach students about sustainable living. Which project would best illustrate the use of renewable resources?
A) A tour of a local coal power plant
B) A workshop on how to plant and care for a vegetable garden
C) A visit to a museum with exhibits on mineral extraction
D) A class on the history of oil drilling
A classmate says a lightbulb uses only electricity and doesn't affect Earth's resources. Do you agree? Why or not? .
A. Yes, lightbulbs are a clean source of energy
B. No, electricity generation often uses resources like coal or water.
C. No, lightbulbs are made of glass and metal.
D. I don't know.
A diagram shows a flashlight with a glowing bulb and batteries. Which best explains how the flashlight works? . .
A. Chemical energy in the batteries is directly converted to light.
B. Chemical energy in the batteries is converted to electrical energy, which then produces light.
C. Thermal energy from the batteries heats the bulb, causing it to glow
D. Sound energy from the circuit vibrates the bulb, producing light
7. If you discover a fossilized shell on a beach today, what inference can you make about the history of that area?
A) The area has always been a beach
B) The area was once covered by water
C) The area was once a desert
D) The area was once a rainforest
. Look at the following image of a triangular prism separating white light into a spectrum of colours (red, orange, yellow, green, blue, indigo, violet).
A. The prism heats up the light, causing it to separate into colours.
B. The prism changes the speed of light, separating the colours.
C. The prism absorbs some colours and allows others to pass through.
D. The prism bends different colours of light by different amounts, creating the spectrum
A guitar string vibrates faster when plucked harder. How does this affect the sound produced by the string?. .
A. The sound will be louder, but the pitch will remain the same
B. The sound will be softer, and the pitch will be lower.
C. The sound quality will change, but the pitch and loudness will not be affected.
D.The sound will be higher in pitch (sound sharper), and it might also be louder
10. A community wants to reduce its reliance on non-renewable resources, which action could it take?
A) Build more coal-fired power plants
B) Increase the use of natural gas for heating homes
C) Install solar panels on buildings
D) Expand the mining of minerals
Look at the image showing children in a classroom involved with various Earth's resources. Which activity demonstrates the use of renewable resources? . ..
A) Children planting seedlings in an indoor garden
B) Children building a model wind turbine
C) Teacher explaining the water cycle
D) All of the above
The table below shows the average daily water consumption for different age groups. Based on the table, estimate the total daily water consumption for a family of four with a 7-yearold child, a 15-year-old teenager, a 35-year-old adult, and a 60-year-old senior. Some data of how many litres is given below, Explain your answer from the data
A. 5 Liters
B. 7 Liters
C. 11 Liters
D. 9 Liters
An animal that eats plants or other animals for energy
CONSUMERS
SCAVENGERS
PREY
PREDAORS
These are natural resources that can be replenished or regenerated naturally over time. They are sustainable and will not run out if used responsibly
Renewable energy
non renewable energy
A circuit where the pathway for electric current is broken, preventing electricity from flowing
closed circuit
open circuit
Curves inward, converges light, can form real or magnified images. Used in: Makeup mirrors, telescopes.
concave
convex
Curves outward, diverges light, always forms a smaller, upright image. Used in: Security mirrors, vehicle side mirrors
convex
concave
A material that allows electricity to flow through it easily, such as metals
insulator
conductor
A material that does not allows electricity to flow through it easily
conductor
insulator
The state reached when two objects in contact no longer exchange heat, as they have reached the same temperature
thermal equilibrium
non -conductors
A living thing, like a plant, that makes its own food using sunlight.
Producers
consumer
decomposers
lever
pulley
lever
wheel and axle
pulley
For surveillance: I recommend using--------------- because they provide a wide field of view, allowing employees to see more areas of the store at once. Convex mirrors reflect light outward, reducing blind spots. For magnification: A ------------- should be used because it converges light and produces a magnified image when the object is placed close to it. This helps in inspecting small product details clearly.
Convex mirrors
concave mirror
concave mirror
Convex mirrors
If the number of algae in this pond significantly decreases, what is the most likely immediate effect on the ecosystem?
.
A) Fish populations will increase.
B) Water clarity will increase
C) Frog populations will decrease.
D) The temperature of the pond will decrease.
Why are the birds in this image important to the grassland ecosystem?
A) They help control insect populations.
B) They provide nutrients to the soil.
C) They pollinate grassland flowers.
D) They compete with insects for food.
If scientists discovered a new planet with similar conditions to Earth, what would be the first thing they would want to know about its surface?
A. Its color
B. Its temperature range
C. Whether it has mostly land or water
D. The number of moons it has
If you plant a garden, which Earth resource are you directly utilizing?
A) Wind
B) Soil
C) Oil
D) Natural Gas
A river flowing over a waterfall has a lot of energy.
Which of the following is made from waterfall energy?
A. hot water
B. solar power
C. electricity
D. drinking water
CLOSED CIRCUIT
OPEN CIRCUIT
