WorksheetsREVISION SCIENCE TOPICS YEAR 6
Total questions: 25
Worksheet time: 13mins
The examples of extinct animals are:(more than 1 answer)
Tyrannosaurus Rex
Dodo bird
Tiger
Tapir
Why dinosaurs had gone extinct?
Humans hunted these animals for their meat and skin
The impact of comets or meteors that hit the Earth
Why Dodo bird went extinct? (more than 1 answer)
The sailors hunted the birds
The rats and cats ate the eggs
The birds cannot fly
The following animals are threatened with extinction EXCEPT:
Tiger
Rhinoceros
Cat
Tapir
Which are the animals are threatened with extinction?(more than 1 answer)
Dugong
Panda
Elephant
Dodo bird
What are the factors that cause animals and plants to be threatened with extinction? (more than 1 answer)
Human Activities
Natural Disasters
Pollution
Cutting down trees selectively
What are the examples of preservation activities? (more than 1 answer)
Gazette an area of the forest as forest reserves
Gazette marine parks to protect animals and plant habitats in the ocean
Organise campaigns
The rehabilitation centre
What is the meaning of preservation?
The practice of protecting animal and plant species and their habitats to ensure that they will be around for future generations
Maintaining the original state of animals and plants from being destroyed
What is the meaning of conservation?
The practice of protecting animal and plant species and their habitats to ensure that they will be around for future generations
Maintaining the original state of animals and plants from being destroyed
What are examples of conservation activities ? (more than 1 answer)
Set up rehabilitation centres for animals
Replant forest tress
Gazette marine parks
Choose the activities that support preservation and conservation. (more than 1 answer)
The residence of a successful entrepreneur is decorated with luxurious decoratives such as carved ivory
A group of fisherman helped a turtle that was trapped in a drift net on the beach and the turtle was released into the sea
A hunter is very proud of the deer antler decoration in the living room of his house.
The villagers telephoned the Wildlife Department after their crops were destroyed by wild elephant.
Why the panda is increasingly endangered?
Because the human hunted the animals
Because the bamboo forest habitat is diminishing.
Because the air pollution
What is meant by animal extinction?
The disappearance of animals from the Earth
Animals become less in number.
Animals suffering from illegal hunting.
Animals that are cared at the conservation centre
Which of the following animals is extinction animals? (more than 1 answer)
Which of the following animals is threatened with extinction? (more than 1 answer)
Which of the following plants is threatened with extinction? (more than 1 answer)
Diagram shows a type of plant. Why this plants were threatened with extinction?
Soil erosion
For medical purposes
Illegal hunting
Water pollution
Why is this animal extinct?
Hunted by other animals for food
Hunted by humans for their skin and meat
Destroyed by natural disaster such as big floods
A wheel with a rope or belt around it. Helps a person lift or move something up, down, or across an area.
wage
axe
pulley
spin
Diagram 7 shows a stall at a night market. Which of the following explains the changes of energy occurred to light the stall?
Chemical energy --> Heat energy --> Electrical energy --> Light energy
Electrical energy --> Light energy --> Heat energy --> Chemical energy
Chemical energy --> Electrical energy --> Light energy + Heat energy
Electrical energy --> Chemical energy --> Heat energy + Light energy
Diagram 8 shows a few lanterns that were hung on an iron wire. What conclusion can be made based on the condition of the iron wire at noon?
The mass of lanterns increases
Air in the lanterns expands
Iron wire contracts when in cold
Iron wire expands when in hot
Which of the following is correct about comets?
Natural satellite of the Earth
Chunks of stones or metals that constantly float in the space
Metal rocks which are located between the orbits of Mars and Jupiter
Frozen gasses, stones and dust that revolve around the Sun
The Moon has no light but receives light from the Sun and reflects it to the Earth. The light reflection can be seen at night. Which of the following situations uses the same principle?
Diagram 3 shows a classification of objects on the ability of light to pass through them. Which of the following represent objects W, X and Y?
X: Wooden door, X: Clear plastic, Y: Coloured plastic
X: Gauze, X: Coloured plastic, Y: Tracing paper
X: Spectacles, X: Tracing paper, Y: Clear plastic
X: Wooden door, X: Gauze, Y: Spectacles
Diagram 2 shows statements about interaction among living things.
