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WorksheetsYear 7 test rev
Total questions: 72
Worksheet time: 1hrs 18mins
What is the control centre of the cell called?
Nucleus
Cell membrane
Cytoplasm
Mitochondria
What is the role of the cell membrane?
Site of respiration
Is the control centre of the cell.
Allows substances to enter and leave the cell.
Gives the cell structural support.
What is jelly like substance where cell reactions take place?
mitochondria
cell membrane
cytoplasm
vacuole
Which cell organelles are ONLY found in PLANT cells.
nucleus, cytoplasm, cell membrane
cell membrane, chloroplasts, large vacuole
cell wall, mitochondria, large vacuole.
cell wall, chloroplasts, large vacuole.
What is chlorophyll?
It is another name for the chloroplast.
The green pigment found in chloroplasts that absorbs light.
The green pigment found in mitochondria that absorbs light.
A pathogen
What type of cell is this?
Animal cell
Plant Cell
Which letter on the diagram represents the nucleus?
C
D
E
F
Which letter shows the site of photosynthesis?
B
C
D
F
Which letters represent organelles found in both plant AND animal cells?
A, E, F
B, E, F
B, F, D
A, C, D
Which letter represents the cytoplasm?
E
F
G
D
An ecosystem is:
plumbing and wiring in a house that uses less water and energy than older systems
all the different physical environmental factors that affect a habitat
all the different types of organisms in a habitat
All the organisms in a habitat together with the physical environmental factors.
What do lizards eat?
mice
grasshoppers
hawks
grass
What might happen if all the rabbits died?
There would be more hawks because there are fewer rabbits in competition with them.
There would be fewer lizards because the hawks would eat more of them.
There would be less grass because the grasshoppers would eat it.
There would be more snakes because they would not compete with the rabbits.
The arrows in a food chain show:
the flow of energy
the loss of energy
how animals use energy to move around in a habitat
how plants make their own energy.
Using the food web, choose the organisms in the correct order.
microscopic plants > water fleas > small fish > perch
microscope plants > perch > water flease > small fish
perch > waterboatmen > small fish > tadpoles
microscopic plants > tadpoles > water boatman > perch
The process by which plants make food from sunlight is called.....
Respiration
Photosynthesis
Transpiration
Using food webs
What is a Force?
The distance
A Jedi mindtrick
A push or pull
The scientist who is most famous his work on forces
Albert Einstein
Stephen Hawking
Sir Isaac Newton
Galileo Galilei
A pull moves things _______ .
Close to you
Away from you
A push moves things _______ .
Close to you
Away from you
Which of the forces in this image is the smallest?
A
B
C
D
E
What type of force is needed to unlock a door?
Pull
Push
Twist
Jump
What is an object doing when it is decelerating?
Speeding up
Slowing down
Traveling at a constant speed
The force that pulls objects towards Earth.
Gravity
Friction
Force
A force that results from two objects rubbing past each other.
Gravity
Friction
Air Resistance
The kicker applies a__________to the other karate master.
Pull
Pomegranate
Pizza
Push
What tool is used to measure weight or force?
Newton meter
Ruler
Stopclock
Tape Measure
What is this?
Stop Watch
Meter Stick
Newton meter
Test Tube
What is an acid
Sour substance
Soapy substance
Water
Clay
Examples of an alkali
Soap
Vinegar
Toothpaste
Lemon
Examples of an alkali
Soap
Vinegar
Toothpaste
Lemon
When you put litmus paper into an acidic solution what colour does it turn
Blue
Red
Green
Yellow
What are acids and alkalis
Corrosive
Reactive
Irritant
How can you protect yourself from corrosive substances
(a)
What is neutral
12
7
10
1
What numbers does the ph scale have
0-14
1-15
5-8
10-20
What does irritant mean
It cuts you
It burns you
It makes you have a rash
It makes you smell
What does corrosive mean
It burns your eyes and skin
It itches you
It stings you
It makes you smell nice
Example of an acid
(a)
What is the hazard shown in this hazard sign?
Explosive
Corrosive
Irritant
High level Irritant
Strong acids and strong alkalis are.......
Able to turn blue litmus paper red
Corrosive
Sour
Sweet
Bleach is a strong alkali, what is the pH level of bleach?
13
10.5
1
2
Acid + Alkali --> Salt + Water
neutralization reaction
synthesis
decomposition
single displacement
Indicator that only changes colour at pH = 7
Universal indicator
Litmus paper
Acids are source of
hydrogen ions
hydroxide ions
Alkalis are source of
hydrogen ions
hydroxide ions
