Science

Question 1

Label the Breathing system (4 PARTS)

Answer 1

Trachea
Broncus
Broncioels
Alviolis
Diaphram
Lung
Intercostal Muscle
Ribs

Question 2

State the function of the following parts of the breathing systems?
Nose
Lungs
Alveolus

Answer 2

Nose - Purifies and moistens air
Lung - Give o2 to the Heart
Alveolus - To exchange thhe gases of o2 and co2

Question 3

What colour does lime water turn when carbon dioxide is present?

Answer 3

Milky White

Question 4

Write the Equation for respiration

Answer 4

Oxygen + Glucose => carbon dioxide + water Vapour and energy

Question 5

What is the
Red Blood Cell
White Blood Cell
Platelets
Plasma
for?

Answer 5

Red Blood Cell - Carries o2 as of Haemoglobin
White Blood Cell - Fight infection
Platelets - Clot Blood
Plasma - Transports Heat and Other Substances

Question 6

What is the
Red Blood Cell
White Blood Cell
Platelets
Plasma
for?

Answer 6

Red Blood Cell - Carries o2 as of Haemoglobin
White Blood Cell - Fight infection
Platelets - Clot Blood
Plasma - Transports Heat and Other Substances

Question 7

label diagram of heart

Answer 7

aorta
Pulmonary Vein/Artery
Vena cava
Venticle
Valves
Septum
Cardiac Muscle

Question 8

Describe a solute , solvent and solution

Answer 8

Solute - Solid that dissolves
Solvent - the liquid that dissolves the Solid
Solution - solif and solvent Combined

Question 9

What is a mixture

Answer 9

2 substances mingled together

Question 10

List 3 Ways in which we can seperate mixtures

Answer 10

Evaporation
Distilation
Chromotology

Question 11

what is chromotolgy used to seperate

Answer 11

inks and dyes

Question 12

Name two examples of mixtures

Answer 12

tea and milk
salt water

Question 13

Range of Ph Scale

Answer 13

0-14

Question 14

name 2 common bases and Acids

Answer 14

lemon juice
Spices
Bleach
Hand Sanitiser

Question 15

Name one acid and base found in the lab

Answer 15

Ammonia
Hydrochloric Acid

Question 16

Name one method of measuring a ph

Answer 16

ph meter

Question 17

write out an equation for neutralisation

Answer 17

Acid + Base => water + Salt

Question 18

Define Titration

Answer 18

titrations allow you to find out how much acid is needed to neutralise a base

Question 19

name 3 pieces of equipment needed for titration

Answer 19

Pipette
Burette
White Tile

Question 20

What is energy?

Answer 20

the ability to do work

Question 21

What is
Potential
Kinetic
Chemical
Light
Heat
Elecrical
Sound
Nuclear
Energy?

Answer 21

Potential - Energy due to happen as of its position or shape
Kinetic - Energy when an object is in motion
Chemical - Energy stored in chemicals such as food, batteries and fuels
Light - this is usually from the sun and provide light
Heat - fires provide heat
Elecrical - wire carrying electricity can be used to supply energy
Sound - form of kinetic energy created when objects viberate
Nuclear - the nueclues of a atom stores alot of energy and when it splits this energy

Question 22

The princible of conversion energy…

Answer 22

cannot be created or destroyed but changed from one to another

Question 23

Sustainablity is…

Answer 23

the conservation of balance in the worlds ecology indefinetly

Question 24

name 3 energy sources

Answer 24

Fire
Sun
Fossil fuels

Question 25

Look over Carbon cycle

Question 26

Look over Water Cycle

Question 27

1. Using the words in the list, complete the sentence. Newtons push direction pull speed A force is a ________ or a __________ that changes the shape, ___________ or ____________ of an object. It is measured in ____________.

Answer 27

A Force is a Push or a Pull that changes the shape, direction or speed of an object. It is measured in Newtons

Question 28

What is Friction?.

Answer 28

when two objects move in opposing motions

Question 29

What reduces friction within an object?

Answer 29

Lubrication

Question 30

2 advantages and 2 disadvantages of a world with no gravity

Answer 30

Jumping higher, less fuel needed in cars since the friction of the car being lesser due to no gravity in the world May float away as gravity keeps us from that, less oxygen due to it floating into the universe as of no gravity the atmosphere would not be their either

Question 31

8. Using a diagram to show your idea, design an experiment to show that forces often act in pairs.

Answer 31

With the diagram above i can show that they work in pairs due to using the tires they oppose the motion of the road meaning that you need two objects working against each other to get the force of friction

Question 32

Name 5 forces

Answer 32

Pull Push Gravity Fricition Electrical