End of semester 1 science test 2025

Question 1

what is the equation for photosynthesis

Answer 1

CO2 + H2O = sunlight = O2 + C6H12O6

Question 2

what is the equation for respiration

Answer 2

C6H12O6 + O2 = H2O + CO2

Question 3

what is the balanced equation for photosynthesis

Answer 3

6co2 + 6h2o = 6o2 + c6h1206

Question 4

CO2

Answer 4

carbon dioxide

Question 5

what is the balanced equation for respiration

Answer 5

c6h1206 + 6o2 = 6h20 + 6co2

Question 6

H2O

Answer 6

water

Question 7

O2

Answer 7

Oxygen

Question 8

C6H12O6

Answer 8

Glucose

Question 9

What is the Xylem

Answer 9

the ‘tubes’ inside the stem of the plants which transport water from the roots to the rest of the plant, it is connected to the stomata

Question 10

Chlorophyll

Answer 10

the chemical response for photosynthesis

Question 11

Chloroplast

Answer 11

it is an organelle inside a cell and houses the chlorophyll

Question 12

Glucose

Answer 12

a food source for all living organisms.

Question 12

Stomata

Answer 12

trap doors on the underneath of leaves which suck in CO2 and H2O for photosynthesis and release O2 and Glucose.

Question 13

Incomplete combustion

Answer 13

produces Carbon Monoxide (CO) and soot which turns the flame yellow.

Question 13

complete combustion

Answer 13

produces carbon dioxide (CO2) - flame burns blue

Question 14

Exothermic reaction

Answer 14

when heat is expelled for a reaction (fire)

Question 15

Endothermic reaction

Answer 15

when heat is ‘taken in’ from the surrounding space around the reaction (photosynthesis

Question 16

Biosphere

Answer 16

All living things

Question 17

Hydrosphere

Answer 17

water -ocean,lakes, rivers

Question 18

geosphere

Answer 18

The land and Earths solid crust

Question 19

Atmosphere

Answer 19

The air/sky gasses surrounding earth

Question 20

Lithosphere

Answer 20

it is apart of the geosphere, it is the rocky outer layer of earths crust which is broken into tectonic plates.

Question 21

what is an interaction between the four spheres

Answer 21

carbon cycle
water

Question 22

how does Photosynthesis and respiration relate to the carbon cycle?

Answer 22

They make up the carbon Cycle
CO2 - plant - O2 - Animal - CO2 - (Repeat)

Question 23

What is the greenhouse effect

Answer 23

the greenhouse effect is when some of the Infrared radiation passes through the atmosphere and is absorbed by greenhouse gasses, which distributes them in all directions which warms and lowers the atmosphere

Question 24

where does methane come from

Answer 24

Methane (CH4) comes from man made and natural sources and has a greater warming capacity than CO2. Agriculture, fossil fuel extraction, waste management man made sources. Wetlands, volcanic activity are natural sources.

Question 25

What is the enhanced greenhouse effect?

Answer 25

The enhanced greenhouse effect is caused by humans adding an unnatural amount of greenhouse gasses into the atmosphere. Adding more gasses to the atmosphere means that more infrared radiation is absorbed and distributed which warms the earth. damaging the atmosphere so less heat leaves the atmosphere warming the earth.

Question 26

Where does Carbon Dioxide come from

Answer 26

Cellular respiration (animals + humans breathing) as well as the burning of fossil fuels/chemical reaction (complete combustion

Question 27

where does water vapour come from

Answer 27

evaporation of water

Question 28

what are examples of greenhouse gasses

Answer 28

Water vapour, methane, Carbon dioxide

Question 29

what is CNS

Answer 29

central nervous system

Question 29

what is the PNS

Answer 29

Peripheral nervous system

Question 29

what do motor Neurons do

Answer 29

they carry messages from the central nervous system to he effectors

Question 30

what do sensory neurons do

Answer 30

they carry messages form organs (feel, see, smell ect..) to the CNS

Question 31

what do interneurons do

Answer 31

they transfer messages between other neurons

Question 32

what is a neuron

Answer 32

special cells that send electrical messages to others they are apart of the peripheral nervous system

Question 34

what is a bacterial infection

Question 35

what is a fungal infection

Question 36

what are some examples of a viral infection

Question 37

what is an example of a bacteria infection

Question 38

what is blood compramised of

Answer 38

red blood cells, white blood cells and plasma and platelets

Question 39

what isthe first line of defence

Answer 39

the non specific barrier comprised if the physical and chemical barriers like skin and slavia, sweat ect..

Question 40

what is the six main parts of the brain

Answer 40

frontal lobe, parental lobe, temporal lobe, occipital lobe, cerebelum and brain stem

Question 41

what does the frontal lobe do

Answer 41

where you proccess ideas

Question 42

what does the pareital lobe do

Answer 42

it is to do with the nerves that sense things

Question 43

occipital lobe

Answer 43

vision

Question 44

temporal lobe

Answer 44

speech/ understanding and processing things

Question 45

cerebellum

Answer 45

balance and coordination

Question 46

brain stem

Answer 46

to do with swallowing breathing, heart rate and blood flow

Question 47

what does the left side of the brain do

Answer 47

language, science, math , thinking and reasoning

Question 48

what does the right brain do

Answer 48

creativity, art, music, shape awareness and recognising faces

Question 49

what s the Aquas Humour (eye)

Answer 49

a clear fluid that helps the cornea keep its shape

Question 50

cornea (eye)

Answer 50

a tough clear covering ove rthe iris and pupil that helps to protect the eye

Question 50

iris (eye)

Answer 50

a muscle that controlls how much light enters the eye