SCIENCE-yearly

Question 1

What are the 3 parts of blood?

Answer 1

Plasma- clear, yellowish liquid
Red Blood cells - carry oxygen
White blood cells- fights diseases and plateletes & blood clots

Question 2

What are abiotic factors?

Answer 2

Abiotic Factors are non living things

Question 3

What is an organism?

Answer 3

A living thing

Question 4

What is an ecosystem made of?

Answer 4

Made up of living and non living things that interact with each other

Question 5

What is ecology?

Answer 5

The way which organisms interact with their environment

Question 6

What are biotic factors

Answer 6

Biotic factors in an ecosystem are known as living things

Question 7

What is a suspension?

Answer 7

When a solid separates from a liquid after a while

Question 8

What’s Chromatography used for?

Answer 8

Used to separate mixtures of different colours using their subilities

Question 9

What is a method that seperates substances by different boiling points?

Answer 9

Distillation

Question 10

What happens when a solution becomes saturated?

Answer 10

The solution stops dissolving

Question 11

What’s an adhesive force?

Answer 11

Attractive forces between particles of different substances

Question 12

Definition of a solid?

Answer 12

Firm and stable in shape, Examples: rocks & metals

Question 13

What can bacteria in food and water lead to…

Answer 13

Food poisoning and gastroenteritis and possibly pimples

Question 14

What are micro organisms responsible for

Answer 14

The decay in food

Question 15

What are bacteria and other micro organisms responsible for

Answer 15

Diseases such as tetanus, phemonia, meningococcal, meningitis, tooth decay and some cases of sore throat and ear infections

Question 16

What are animals that feed on only plants called?

Answer 16

Herbivores and also first order consumers

Question 17

What are animals that only feed on other animals called?

Answer 17

Carnivores

Question 18

What are animals that feed on only plants called..

Answer 18

Omnivores

Question 19

In the food chain animals are called…

Answer 19

consumers

Question 20

In the food chain plants are called…

Answer 20

Producers

Question 21

What is photosynthesis

Answer 21

A process that plants use to gather energy from the sun. The Suns energy allows the plants to convert carbon dioxide and water into sugars and oxygen

Question 22

What does density mean when talking about ecology?

Answer 22

Means the number of species living in an area.

Question 23

What is a habitat?

Answer 23

A habitat is a place where an organism lives

Question 24

Definition of distribution

Answer 24

The area inhabited by a plant or animal species

Question 25

What do abiotic factors include

Answer 25

Abiotic factors include | Temperature, soil type, rainfall patterns and amount of light available

Question 26

Definition of abundance

Answer 26

The number of a species living within an area

Question 27

What do biomass pyramids show?

Answer 27

They show food chains in ecosystems

Question 28

What is viscosity?

Answer 28

A measure of how much resistance a fluid offers against movement. Water has a low viscosity and cold honey has a high viscosity

Question 29

What allows some insects to walk on water?

Answer 29

Surface tension

Question 30

Liquid -> gas

Answer 30

Evaporating

Question 31

Gas -> solid

Answer 31

Deposition

Question 32

Gas -> liquid

Answer 32

Condensing

Question 33

Liquid -> solid

Answer 33

Freezing

Question 34

Solid -> liquid

Answer 34

Melting

Question 35

What determines the concentration?

Answer 35

The amount of solute dissolved in a solvent

Question 36

What does insoluble Mean?

Answer 36

It means that, that particular substance can't dissolve in the other substance

Question 37

What does soluble mean?

Answer 37

It means that particular substance can dissolve in that particular solvent

Question 38

What are the solutions called when the water is the Solvent

Answer 38

Aqueous solutions

Question 39

What is the substance called when another is dissolved in it

Answer 39

A solvent

Question 40

What is a substance called that dissolves into another substance

Answer 40

A solute

Question 41

What is a mixture

Answer 41

A mixture is made up of 2 or more substances that have different properties eg. Sea water

Question 42

Solid -> gas

Answer 42

Sublimating

Question 43

What are colloids

Answer 43

Insoluble substances that remain spread out through another substance is called a colloid

Question 44

What is sediment

Answer 44

Sediment are particles that are at the bottom of the mixture

Question 45

What's a cohesive force?

Answer 45

Attractive forces between similar particles in a substances

Question 46

What is centrifuging

Answer 46

A mixture can be separated by spinning it very quickly. This method is called centrifuging. The spin-dry cycle of a washing machine acts as a centrifuge and a filter. As it spins at high speed, the clothes are forced to the sides of the tub and the water passes out through the holes in the tub. The clothes cannot fit through the holes and so much of the water is removed from them.

Question 47

What is centrifuging

Answer 47

Mixtures that can seperate quickly by spinning in very fast

Question 48

To let heat pass through something

Answer 48

Conduct

Question 49

Pieces of info that are described in words

Answer 49

Qualitive data

Question 50

A change in which no new materials form

Answer 50

Physical change

Question 51

What Is heterogenous

Answer 51

Something that is not the same

Question 52

What is homogenous

Answer 52

Something that is the same