EOS1 exam science 2024

Question 1

Terrestrial planets

Answer 1

Mercury, Venus, Earth, Mars

Question 2

Gas Planets

Answer 2

Jupiter, Saturn, Uranus and Neptune

Question 3

The planets with belts

Answer 3

Saturn and Uranus

Question 4

What separates the terrestrial and gas planets

Answer 4

asteroid belt

Question 5

What caused Pluto to be defined as a dwarf planet?

Answer 5

The discovery of a rocky object similar in size to Pluto called Eris caused scientists to debate what defined a planet.

Question 6

what classifies a planet.

Answer 6

according to an astronomer in 2006, to be classified as a planet the celestial body must
-be in orbit around a star, while not being a star.
-be large enough that its mass for its own gravity causes it to be spherical shape
-travel in an orbit that does not overlap with objects including planets.

Question 7

How many years till the sun implodes

Answer 7

6.5 billion years it will implode and destroy mercury venus earth before it turns into a white dwarf and its gravitational pull would cease.

Question 8

The sun was created by…

Answer 8

a nebula that collapsed

Question 9

the 8 planets could fit into the sun..

Answer 9

600 times

Question 10

the suns core is

Answer 10

15 million˚c at the core

Question 11

the sun holds the planets in orbit with

Answer 11

its gravitational force

Question 12

the sun gives humans and plants life on earth through

Answer 12

humans and plants life on earth through photosynthesis

Question 13

what zone is the earth in

Answer 13

goldilocks zone

Question 14

what is solar radiation

Answer 14

energy released from the sun that reaches all the planets.

Question 15

what are all the different types of energy thst areemitted from the sun is

Answer 15

electro-magnetic, visible light, infa-red radiation, ultra violet radiation, x-rays and gamma rays.

Question 16

why do humans need ultra violet radiation

Answer 16

for the human body to make vitamin D

Question 17

Why does the earth need Solar radiation

Answer 17

photosynthesis and for the surface and bodies of water to be warm enough for life.

Question 18

___ units of solar radiation are reflected back into space by the atmosphere

Answer 18

25

Question 19

___ units are absorbed by the ground and ocean

Answer 19

46

Question 20

___ units are absorbed by the atmosphere

Answer 20

23

Question 21

5 units are reflected back into space by the.,.

Answer 21

ground and the ocean.

Question 22

what direction does the earth spins

Answer 22

anticlockwise which means sun rises in the east and sets in the west.

Question 23

the earths axis tilt

Answer 23

23.5

Question 24

one full orbit around the sun takes

Answer 24

365.25 days which is the reason for a leap year every 4 years.

Question 25

one full rotation of the earth takes

Answer 25

24 hours

Question 26

the amount of sunlight a hemisphere receives determines

Answer 26

what season it is in

Question 27

how many moon phases are there?

Answer 27

8

Question 28

what is tidal force?

Answer 28

Tidal force is the amount of gravity that can be exerted or applied to an object

Question 29

What does the moon exert a tidal force on?

Answer 29

The moon exerts a tidal force on the water on earth

Question 30

the further you are from the centre of the earth the less

Answer 30

the gravitational force effects you

Question 31

What does the moons tidal force on the earth create?

Answer 31

The moons tidal force on the earth creates 4 tides a day, 2 high (water levels rise) and 2 low (water levels sink)

Question 32

what is a solar eclipse

Answer 32

a solar eclipse is when the moon passes between the earth and sun and they all line up

Question 33

what is a lunar eclipse

Answer 33

a lunar eclipse is when the sun earth and moon all line up and the earth casts a shadow on the moon called the umbra which causes it to turn red

Question 34

what are the 4 types of solar eclipses

Answer 34

the four types of solar eclipses are total, partial, annular and hybrid

Question 35

when was the carbon iferous period

Answer 35

250 million

Question 36

brown coal is also called

Answer 36

ligmite

Question 37

what is peat

Answer 37

peat is the dead things in a swamp that form a layer

Question 38

the circle of light around the moon in a solar eclipse is called

Answer 38

the corona

Question 39

why do total solar eclipses only occur when the moon is new

Answer 39

because it will not look as though it covers the sun entirely and no corona will occur.

Question 40

porous rocks are called a reservoir rock because they

Answer 40

hold oil and natural gases

Question 40

first environmental impact of coal mining

Answer 40

releases toxic gases into the air and water which can effect water and air quality

Question 40

second environmental impact of coal mining

Answer 40

produces large amount of wast

Question 41

third environmental impact of coal mining

Answer 41

to coal mine large scale movements of rock and vegetation need to occur

Question 42

oil is a hydrocarbon, what is a hydrocarbon

Answer 42

a hydro carbon is a combination of hydrogen and carbon

Question 43

what determines a living thing

Answer 43

a living thing is determined by if it does 7 things- movment, respirate, sensitivity, growth, reproduce, ecretion and nutrition.

Question 44

what is movment

Answer 44

the ability to move independently

Question 45

what is respirate

Answer 45

converting glucose and oxygen into energy

Question 46

what is sensitivity

Answer 46

adapting to environment

Question 47

what is growth

Answer 47

the ability to grow

Question 48

what is reproduce

Answer 48

it is to pass on your genetics from one generation to another

Question 49

what is excretion

Answer 49

the ability to remove waste from your body

Question 50

what is nutrition

Answer 50

taking in and eating food

Question 51

what is a prokaryotic

Answer 51

bacteria and archea

Question 52

what is a eukaryote

Answer 52

animal, plant, fungi

Question 53

what are the 5 rs

Answer 53

refuse, reduce, reuse, recycle, rot

Question 54

step 1 of the digestive system

Answer 54

1-digestion begins in the mouth, saliva, teeth, tongue help to break down food.

Question 55

step 2 of the digestive system

Answer 55

the stomach is a muscle that compresses food and it contains acid that breaks down food as well

Question 56

step 3 of the digestive system

Answer 56

nutrients are absorbed in the small intestine

Question 57

step 4 of the digestive system

Answer 57

food is prepared for excretion and large intestine removes water

Question 58

step 5 of the digestive system

Answer 58

the recturm is where you store your feces

Question 59

step 6 of the digestive system

Answer 59

waste is excreted through the anus.

Question 60

what does PMAT stand for

Answer 60

Prophase, Metaphase, Anaphase and Telophase.

Question 61

The purpose of mitosis

Answer 61

1 cell grows, then divides into 2 genetically identical daughter cells

Question 62

photosynthesis

Answer 62

carbon dioxide and water and enery give glucose and oxygen

Question 63

callular respiration

Answer 63

oxygen and glucose give water, energy and carbon dioxide.

Question 64

cytoplasm

Answer 64

jelly like substance where most chemical reactions occur

Question 65

nucleus

Answer 65

contains genetic information and controls the activities of the cell

Question 66

Mitochondria

Answer 66

powerhouse of the cell, is where respiration occurs

Question 67

ribosome

Answer 67

carries out protein synthesis, turns DNA into energy

Question 68

cell membrane

Answer 68

membrane that controls the movement of substances in and out of the cell

Question 69

chloroplast

Answer 69

only in animal, creates photosynthesis

Question 70

Vacuole

Answer 70

stores water

Question 71

cell wall

Answer 71

strengthens the cell and provides support

Question 72

the direction of respiratory system

Answer 72

nasal or mouth cavity, pharynx, larynx; trachea, lungs, bronchi, bronchioles, alveoli and diaphragm

Question 73

diffusion definition

Answer 73

the movement of materials from a high concentraion to a low concentration

Question 74

how does temp affect diffusion

Answer 74

hotter it is the faster

Question 75

how does distance effect diffusion

Answer 75

the further the distance the slower the diffusion

Question 76

how does the concentration effect the diffusion

Answer 76

the higher the concentration the faster the diffusion

Question 77

equilibrium is

Answer 77

fully diffused

Question 78

does diffusion require ATP

Answer 78

no

Question 79

why is polyester not renewable resource

Answer 79

because it is made from potroluem which is a crude oil