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WorksheetsPRACTICE FOR PEARSON TRIAL SCI9
Total questions: 80
Worksheet time: 57mins
Subatomic particle with negative charge is
Proton
Electron
Neutron
Which particle has a positive electrical charge?
proton
neutron
electron
Which particles make up the nucleus of an atom? (you can choose more than one answers)
proton
electron
neutron
Light is an example of a resource that plants compete for in order to survive. Give one other resource that plants compete for in order to survive.
examples: space, minerals, nutrients and (a)
What are the units for work done?
(a)
What are the units of force?
(a)
Which gas is produced during photosynthesis?
(a)
Which gas is used in the reactants during photosynthesis?
(a)
What gas is the most abundant in earth's atmosphere?
(a)
Symbol H means
(a)
how many atoms make up a molecule of carbon dioxide ( CO2)?
1
2
3
4
What is the scientific name for salt?
Sodium chloride
Hydrochloric acid
Acetic acid
Potassium chloride
Cu means
(a)
Which is the correct chemical symbol for this atom of helium?
cells
organ systems
organs
tissues
cells
organs
organ systems
tissues
cells
tissues
organs
organ systems
organ systems
tissues
organs
cells
How do adaptations help animals?
to hide from predators
to hunt for food
to survive in their habitats
All of the answers are correct
Cactus have spines and waxy leaves to prevent water loss because they live in the ...
Desert
Rocky mountain
Grassland
Tropical Rainfroest
larger ears for cooling the body
smaller ears for cooling the body
there is no difference
both a and b correct
SELECT ALL THAT APPLY
How are mass and weight different?
mass never changes
weight depends on gravity
mass depends on gravity
weight never changes
Which of these explains why the weight of an astronaut is less on the Moon than on Earth?
there is no atmosphere on the Moon
the Moon's gravitational field strength is smaller than the Earth's
the astronaut has more mass on the Earth than on the Moon
there is no gravity on the Moon
The diagram shows an outline of part of the Periodic Table.
P, Q, R and S show the position of four elements.
The letters are not the symbols of the elements.
Which two elements are in the same group?
SELECT TWO!
P
R
Q
S
The diagram shows a pyramid of numbers that represents the number of organisms at each stage in a food chain.
Which are the producers in this food chain?
(a)
What is the decomposer in the picture above?
grass
fungus/mushrooms
hawk
frog
When you compare the deer to the wolf, the deer would be the
decompser
predator
prey
producer
What subatomic particles have a charge and are found in the nucleus of atoms?
(a)
Which system is the stomach in?
respiratory
digestive
skeletal
circulatory
What is the main job of the digestive system?
break down foods into nutrients that can be used by the body
enables us to breathe
pump blood throughout the body
support our body
An atom of carbon can be represented as
What is the mass number of this atom?
(a)
What is the atomic number?
the number of protons
the number of protons and neutrons
the number of neutrons
the number of electrons
Complete the sentence by using one word from the box.
When all the sugar dissolves in water, a (a) is formed.
What is the most likely pH of a strong alkali?
1
7
8
14
The table compares the main features of aerobic respiration and anaerobic respiration. Complete the table to show the two products formed during aerobic respiration.
water and (a)
What are the products of aerobic respiration?
Glucose and oxygen
Lactic acid
Carbon dioxide and water
Carbon monoxide
What are the two products of photosynthesis?
Oxygen and Carbon dioxide
Oxygen and Sugar
Sunlight and Sugar
Which is a correct symbol for a SI unit of speed?
(a)
An atom of aluminium can be represented by the symbol
How many neutrons are there in this atom of aluminium?
(a)
The diagram shows an outline of the Periodic Table.
Four areas have been shaded and labelled P, Q, R and S.
Which area contains only non–metals?
(a)
This is the chemical symbol for the element iron.
What is the atomic number of iron?
(a)
Calcium metal reacts with oxygen to form calcium oxide, which is a white solid. Which is the correct chemical equation for this reaction?
Ca(s) + O2(g) → CaO(s)
2Ca(s) + O2(s) → 2CaO(g)
Ca(s) + O(g) → CaO(s)
2Ca(s) + O2(g) → 2CaO(s)
Which of these is the correct equation for photosynthesis? (MUST BE BALANCE)
CO2 + H2O → C6H12O6 + O2
6CO2 + 6H2O → C6H12O6 + 6O2
6CO2 + H2O → C6H12O6 + O2
CO2 + 6H2O → C6H12O6 + 6O
When a metal carbonate reacts with an acid the products are a salt, water and carbon dioxide. Which is the correct equation for the reaction between copper carbonate and hydrochloric acid?
CuCO3 + HCl → CuCl2 + H2O + CO2
CuCO3 + 2HCl → CuCl2 + H2O + CO2
CuCO3 + 2HCl → CuCl2 + 2H2O + CO2
CuCO3 + HCl → CuCl2 + H2O + 2CO2
Which is the correct formula for calcium carbonate?
CaCO
CaCO2
CaCO3
Ca2CO
An acid reacts with a metal carbonate.
Which is the correct general equation for this reaction?
acid + metal carbonate → salt + carbon dioxide
acid + metal carbonate → salt + hydrogen + carbon dioxide
acid + metal carbonate → salt + water
acid + metal carbonate → salt + water + carbon dioxide
Which shows gravitational force that causes Earth to orbit the sun?
Which part of the digestive system is number 2?
oesophagus
stomach
small intestine
tongue
The diagram shows two charged spheres.
complete the statement
the spheres will (a) each other because they both have the same charge
Which of these is a disease caused by a virus?
athlete's foot
cholera
flu
salmonella
a subatomic particle with a negative charge
(a)
a subatomic particle with a no ncharge
(a)
Water can diffuse through the wall of a root hair cell.
Complete the sentence about the direction of diffusion of the water molecules through the wall of a root hair cell.
WATER MOVEMENT IS FROM ____ CONCENTRATION TO ___ CONCENTRATION, BECAUSE IS IS GREATHER OUTSIDE THE CELL
(a)
Air is a mixture of different gases.
Complete the sentence below using gases from the box.
The greatest proportion of air is ________.
NITROGEN
CARBON DIOXIDE
OXYGEN
HYDROGEN
Air is a mixture of different gases.
Complete the sentence below using gases from the box.
approximately 21% of the air is ______.
NITROGEN
CARBON DIOXIDE
OXYGEN
HYDROGEN
HIGHER LEVELS OF CARBON DIOXIDE IN ATMOSPHERE PRODUCE GLOBAL WARMING AND SO INCREASNG THE GREENHOUSE EFFECT
TRUE
FALSE
When dilute nitric acid reacts with potassium hydroxide solution a neutralisation reaction occurs.
Complete the word equation for the reaction using substances from the box.
nitric acid + potassium hydroxide →____________________ + ________________________
POTASSIUM NITRATE + SALT
POTASSIUM NITRATE + WATER
POTASSIUM OXIDE + HYDROGEN
CARBON DIOXIDE + OXYGEN
1_______
2_______
3_______
1 OXYGEN MOLECULE
2 HYDROGEN ATOM
3 WATER ATOM
1 HYDROGEN MOLECULE
2 OXYGEN ATOM
3 WATER MOLECULE
1 HYDROGEN MOLECULE
2 HYDROGEN ATOM
3 WATER MOLECULE
1 HYDROGEN ATOM
2 HYDROGEN MOLECULE
3 WATER ATOM
TRUE OR FALSE about how stomata help the leaf to carry out photosynthesis.
PHOTOSYNTHESIS ALLOW OXYGEN INTO THE LEAF AND ALLOW CARBON DIOXIDE OUT OF LEAF.
TRUE
FALSE
There are different types of chemical reaction. Match each type of chemical reaction to its description.
1 ______
2 ______
3 ______
1 THERMAL DECOMPOSITION
2 EXOTHERMIC
3 ENDOTHERMIC
1 THERMAL DECOMPOSITION
2 ENDOTHERMIC
3 EXOTHERMIC
1 EXOTHERMIC
2 THERMAL DECOMPOSITION
3 ENDOTHERMIC
1 EXOTHERMIC
2 ENDOTHERMIC
3 THERMAL DECOMPOSITION
The diagram shows an outline of the Periodic Table. Five elements have been labelled using the letters P, Q, R, S and T. The letters are not the chemical symbols of the elements.
Choose letters from the diagram to complete the sentences below.
Elements _, _, and_, will have similar
properties.
S,Q,R
S,T,R
P,Q,R
S,P,T
The diagram shows an outline of the Periodic Table. Five elements have been labelled using the letters P, Q, R, S and T. The letters are not the chemical symbols of the elements.
Choose letters from the diagram to complete the sentences below.
Elements _, _, and_, are from the same
period.
S,Q,R
S,T,R
P,Q,R
S,P,T
This symbol represents an atom of sodium.
electrons= __
neutrons= __
(a)
This is the chemical symbol for an atom of an element called chromium.
The mass number of this atom is __
and its atomic number is __.
The number of neutrons in this atom of chromium is__.
(a)
Plant leaves have adapted to enable photosynthesis to take place. The diagram shows some adaptations and possible reasons for them. Draw one straight line from each adaptation to the reason for that adaptation.
WHICH ANSWERS ARE ALL CORRECT?
The diagram shows a food chain.
(Different terms are applied to organisms in a food chain. Identify each term to the name of the organism that it applies to.
primary consumer = ______
producer=_____
tertiary consumer = ____
primary consumer = shrimp
producer= algae
tertiary consumer = seal
primary consumer = algae
producer= shrimp
tertiary consumer = cod
primary consumer = seal
producer= polar bear
tertiary consumer = cod
primary consumer = polar bear
producer= algae
tertiary consumer = seal
Polar bears live in cold, icy, snowy, Arctic conditions. State one way that the polar bear is adapted to its habitat.
thick white fur, fat and skin
big feet for strong claws
small ears to minimize the coldness in the body
all of the above
The diagram shows a food chain which forms part of an ecosystem.
secondary consumer = ________
decomposer = _____
secondary consumer = snake
decomposer = fungi
secondary consumer = bluebird
decomposer = grass
secondary consumer = bluebird
decomposer = fungi
State one function of a decomposer in a food chain.
add nutrients to the soil
break down and decay bodies of organisms in the food chain
both a and b are correct
none of the above
Zinc metal reacts with oxygen.
Complete the word equation for the reaction of zinc metal with oxygen. (1)
zinc + oxygen →____ _____
(a)
Displacement reactions can be used to place metals in a reactivity series. Iron metal is less reactive than zinc metal.
Predict two changes that will take place when a piece of zinc metal is added to a solution of iron sulfate.
zinc will displace iron or iron metal is produced
zinc sulfate is produced so there is increase in temperature
zinc will not displace iron
zinc sulfate is produced so there is decrease in temperature
Photosynthesis takes place in the leaves of green plants.
Photosynthesis produces glucose and oxygen.
Complete the word equation for photosynthesis.
______ _______ + water → glucose + oxygen
(a)
the rate of the photosynthesis will decrease and probably increase again in certain time
the rate of the photosynthesis will increase and probably decrease again in certain time
no answer
The leaves of green plants have evolved and adapted to allow photosynthesis to take place efficiently.
Give all leaf adaptation that helps photosynthesis take place.
waxy surface or cuticle
lots of stomata
large surface area
large number of chloroplast
The leaves of green plants have evolved and adapted to allow photosynthesis to take place efficiently.
There are some adaptations that helps photosynthesis take place. State how the adaptation helps photosynthesis take place.
waxy surface to reduce water loss
stomata helps gas exchange
large surface area and large number of chloroplasts capture energy and sunlight
none of the above
The diagram shows the arrangement of particles in a solid, a liquid and a gas.
The arrows show the changes of state. Two of the changes of state have been labelled.
1 melting
2 condensing
1 condensing
2 melting
1 evaporating
2 melting
1 distillating
2 condensing
Some gas is put in a balloon. Explain, in terms of particles, how the gas exerts a pressure on
the inside of the balloon?
TRUE OR FALSE, gas particles are moving randomly slow so they hit,collide, bounce, with the inside of the balloon and so exercting force
(a)
