What is the word equation for photosynthesis?

Water + Carbon Dioxide -> Glucose + Oxygen

What colours make up the visible light spectrum aka 'white light'

Red, orange, yellow, green, blue, indigo, violet

What is the equation for combustion?

Hydrocarbon + Oxygen -> Carbon Dioxide + Water

What is the carbon cycle?

carbon transfers from the atmosphere to the Earth and then back again

An organism that makes its own food

We see white objects as white because...

They reflect all 7 colours of the visible light spectrum

Which of these are greenhouse gases?

Methane, carbon dioxide, water vapour, nitrous oxide, ozone

What are some adaptations of human egg cells?

large surface area, full of cytoplasm, jelly coating, haploid

The flow of electrons and transfer of energy

Stop indigestion by neutralising excess stomach acid

What is the greenhouse effect?

The Earth is heated because greenhouse gases trap the Sun's rays.

What do animal cells NOT have?

Cell wall, chloroplasts, vacuole

How can I tell a chemical reaction has taken place?

Colour change, Heat is produced, Bubbles or smell

What is climate change?

Shift in weather, damaging wildlife, causing flooding and mass extinction.

When a solid turns into a liquid it...

Melts, the forces of attraction are overcome

Why does a candle go out when you smother it?

Because you have removed the oxygen source

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year 7 term 4 quiz

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Questions 37

Answers

1
What is the word equation for photosynthesis?
Water + Carbon Dioxide -> Glucose + Oxygen
Water + Oxygen -> Carbon Dioxide + Glucose
Water + Sunlight -> Oxygen + Carbon Dioxide
Carbon Dioxide + Glucose -> Water + Oxygen
2
Which state of matter has the most kinetic energy?
Liquid
Solid
Gas
Plasma
3
What colour does blue litmus turn in acids
Red
Blue
Orange
Yellow
4
What colours make up the visible light spectrum aka 'white light'
Black, white, magenta, cyan, green, red, blue
Red, orange, yellow, green, blue, violet
Orange, indigo, Green, Yellow
Red, orange, yellow, green, blue, indigo, violet
5
What are the three fossil fuels?
Gas, coal, fire
Hydro-electric, coal, gas
Electricity, gas, oil
Coal, oil, gas
6
What pH are acids?
Below 7
Above 7
Below 3
Above 14
7
How would I put out a chip fire?
Fire extinguisher
Remove heat source
Water
Smother it
8
What is the equation for combustion?
Hydrocarbon + Coal = carbon dioxide + water
Coal + fire -> Carbon dioxide
Hydrocarbon + Oxygen -> Carbon dioxide
Hydrocarbon + Oxygen -> Carbon Dioxide + Water
9
What is the carbon cycle?
Carbon atoms are passed between humans and plants through photosynthesis
carbon transfers from the atmosphere to the Earth and then back again
The transfer of water from seas, oceans and rivers
Carbon is released by the combustion of fossil fuels causing climate change
10
What is a producer?
A carnivore
An organism that gives food to other organisms
A musician
An organism that makes its own food
11
Which of these is not a force?
Buoyancy
Electricity
Friction
Upthrust
12
Na(OH)3 is...
Nitrogen hydrogen oxygen
Nickel hydroxide
Rubidium
Sodium hydroxide
13
What does Au stand for?
Copper
Bronze
Gold
Silver
14
In universal indicator, pH neutral is...
Yellow
Green
Purple
Red
15
We see white objects as white because...
They reflect violet and red which make it appear white
They absorb all visible light waves
They reflect all 7 colours of the visible light spectrum
They reflect white waves only
16
What are the products for neutralisation?
Acid + Base
Fish + Chips
Alkali + Water
Salt + Water
17
Which of these are greenhouse gases?
Methane, carbon dioxide, water vapour, nitrous oxide, ozone
Carbon dioxide and water vapour
Ethane, carbon dioxide, ozone
Carbon dioxide, methane
18
What are some adaptations of human egg cells?
large surface area, full of cytoplasm, jelly coating, haploid
Diploid, jelly coat, large surface area, full of cytoplasm
Round, jelly and half the DNA for a baby
They have a yolk with half the DNA in
19
How many atoms are in H2O?
2
1
4
3
20
What is electricity?
The flow of protons and transfer of energy
The flow of electrons and transfer of energy
A force of electromagnets
The flow of electrons in a wave
21
What do antacids do?
Stop indigestion by neutralising excess stomach acid
Reduce excess food in the stomach
Stop indigestion by neutralising excess alkali
Stop you from feeling ill
22
How do I write the chemical that has Cu, S and O in?
Copper Sulphur Oxide
Copper Sulphate
Calcium sulphate
Copper Sulphide
23
What is the greenhouse effect?
Plants can grow taller because the Sun gets trapped in a greenhouse
The Earth is cooled because greenhouse gases allow it.
Plants can photosynthesize better because the Sun's rays are trapped
The Earth is heated because greenhouse gases trap the Sun's rays.
24
Which of these are alkali?
Hydroxide
Vinegar
Bleach
Toothpaste
25
How many atoms are in NaCl?
3
1
2
0
26
What do animal cells NOT have?
Cytoplasm, golgi apparatus, vacuole
Cell membrane, mitochondria, nucleus
Cellulose, cell wall, cell membrane
Cell wall, chloroplasts, vacuole
27
How can I tell a chemical reaction has taken place?
Colour change
state has changed e.g melted
Heat is produced
Bubbles or smell
28
What does corrosive mean?
Burns hair and brick
It is safe to wash in
Bleaches the skin
Eats away at metal and flesh
29
What is climate change?
When the weather changes, like the seasons
Moving to another country with a different climate
Shift in weather, damaging wildlife, causing flooding and mass extinction.
The whole Earth will become hot
30
What colour is phenolphthalein in acids?
Red
Colourless
Pink
Purple
31
Which of these is NOT living?
Amoeba
Fungus
Bacteria
Virus
32
Which is the best subject?
History
Science
PE
Food tech
33
What elements are in NaCl?
Nickel and calcium
Sodium and chlorine
Nadium and chlorine
Nitrogen and chlorine
34
When a solid turns into a liquid it...
Melts, the forces of attraction are overcome
Evaporates, the forces of attraction are overcome
Liquefies
Freezes, the forces of attraction are strengthened
35
Why does a candle go out when you smother it?
Because you have removed the heat source
Because you have removed the carbon dioxide source
Because it stops burning
Because you have removed the oxygen source
36
OH stands for..
Hydroxide
Oxide
Oxygen and hydrogen
Oh no
37
Fungi are examples of...
Decomposers
Producers
Consumers
Protozoa

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