Science Term 3 test Oceans

Question 1

Define Food Chain

Answer 1

A food chain describes how energy and nutrients move through an ecosystem.

Question 2

Rearrange in correct oder: grasshopper, Owl, Grass, Mouse

Answer 2

Grass - Grasshopper- Mouse - Owl

Question 3

Producers

Answer 3

They produce their own food using carbon dioxide and water.

Question 4

Consumers

Answer 4

Things that eat other living things (Herbivore omnivore or carnivores)

Question 5

Primary consumer

Answer 5

Organisms which eat producers (herbivore)

Question 6

Secondary consumer

Answer 6

Organisms that eat primary consumers (Carnivores)

Question 7

Tertiary consumers

Answer 7

Organisms that eat secondary consumers (Carnivores)

Question 8

Rearrange: Worm, Snake, Apple, Bird

Answer 8

P: Apple, PC: Worm, SC: Bird, TC: Snake

Question 9

Mouse, Corn, eagle

Answer 9

P: Corn, PC: Mouse, SC: Eagle

Question 10

Define food web

Answer 10

Consists of all the food chains in a single ecosystem

Question 11

Carnivore

Answer 11

Eats other animals

Question 12

Ecosystem

Answer 12

Different organisms interacting with each other in an enviroment

Question 13

Herbivore

Answer 13

Eats only plants

Question 14

Omnivore

Answer 14

Eats meat and plants

Question 15

Decomposer

Answer 15

Breaks down decaying or dead organisms

Question 16

Define energy pyramid

Answer 16

Only about 10% of the energy consumed is passed up the food chain (I.e to the animal that eats it)

Question 17

Define Habitat

Answer 17

Is the place an organism lives that contains all the things it needs to thrive

Question 18

Define Abiotic

Answer 18

Non living parts of a habitat e.g. temperature, water, sun

Question 19

Define Adaptation

Answer 19

The process whereby a species evovlves characteristics that enable it to survive in a particular habitat

Question 20

Define Physical Adapations/structual adaptation

Answer 20

• A changing feature of a living thing that helps it to survive in a particular environment.
• Changes usually happen over a very long time (Years)

Question 21

Define behavioural adapation

Answer 21

• A thing that a living thing does to survive in a particular environment, such as the way they feed, breed, or move.

Question 22

Fennec foxes have large ears to cool them down

Answer 22

Structural

Question 23

Bears hibernating

Answer 23

Behavioural

Question 24

Birds migrating

Answer 24

Behavioural

Question 25

Spines on cactus

Answer 25

Structural

Question 26

Polymers- Plastic

Answer 26

*Polymers are large molecules built up from small units called monomers
* They can be repeated any number of times from 100 to 1,000,000

Question 27

Define Microplastics

Answer 27

• Microplastics are tiny plastic particles
  *Less than 5mm in diameter
  *They are the result of larger plastic items being broken down by environmental factors e.g. sun radiation and ocean waves.