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WorksheetsEl-Moasser Final Examination Models - Model Exam 1
Total questions: 94
Worksheet time: 47mins
The roof of desert homes is made of strong stones because:
it protects against strong winds and sandstorms
it keeps the house cool during winter
it is easier to build with stones
it makes the house look beautiful
We can describe a solid matter by its color and shape.
✓
✗
The mass and properties of oil will change when mixing it with vinegar.
✓
✗
Particles of all matter are in a continuous motion.
✓
✗
Xylem helps the plant to get water from the soil.
✓
✗
What happens if a plant is placed in a dark place for many days?
The plant will not be able to make food and may die.
The plant will grow faster and become healthier.
The plant will produce more flowers.
The plant will turn blue.
Complete the following sentences: 1. Throwing plastic garbage and waste materials into a river causes water .............
pollution
evaporation
condensation
filtration
Both ............. organisms and ............. organisms cannot produce their own food.
animal, fungal
plant, animal
bacterial, plant
fungal, plant
Without ............. in the leaves of plants, gases can't move in or out of the plant.
stomata
chlorophyll
roots
xylem
Complete the following sentences: 4. Melting of wax is a ............. change, while burning of wood is a ............. change.
physical, chemical
chemical, physical
chemical, chemical
physical, physical
(B) Cross out the odd word: 1. Oil – Milk – Water – Wood. (....................) Which of the following is the odd word?
Wood
Oil
Milk
Water
Cross out the odd word: 2. Roots – Stems – Leaves – Sunlight.
Sunlight
Water
Soil
Branches
When we heat an ice cream, it __________ and becomes liquid.
melts
freezes
evaporates
solidifies
Digestion of food is considered as a __________ change of matter.
chemical
physical
mechanical
temporary
Complete the following sentences: 3. We can use __________ in making hammers because it is __________ and strong.
iron, hard
wood, soft
plastic, flexible
glass, brittle
Complete the following sentences: 4. You can use a __________ to measure the mass of a matter, while you can use a __________ to measure its temperature.
balance, thermometer
thermometer, balance
ruler, thermometer
balance, ruler
What happens to the speed of particles of an ice cube when it is exposed to the Sun?
The speed of the particles increases.
The speed of the particles decreases.
The speed of the particles remains the same.
The particles stop moving.
It is the number of organisms of one type of species living in an area.
population
community
ecosystem
habitat
The animal that is eaten by another animal.
prey
predator
scavenger
producer
The liquid substance that plants, animals and human need to survive.
water
oil
vinegar
juice
A part of the plant that anchors it in the soil.
root
leaf
flower
stem
Human needs to eat some animals and plants because:
they provide essential nutrients for survival.
they are easier to find than other foods.
they taste better than other foods.
they are the only source of water.
(B) Correct the underlined words: 1. Due to rising of water temperature, coral reefs turn completely into green. What is the correct word to replace the underlined part? A. white B. blue C. yellow D. brown
white
blue
yellow
brown
Correct the underlined words: 2. Tree trunks are climb stems. (______________)
thick
thin
soft
weak
1. Air enters plants through roots. ( )
True
False
All plants need the same way to disperse their seeds.
True
False
If coral reefs are destroyed, many marine food chains will be destroyed.
True
False
4. Vinegar and frozen vegetables have definite shape.
True
False
(B) What happens if a magnet is put close to an iron nail and a plastic spoon?
The iron nail is attracted to the magnet, but the plastic spoon is not.
Both the iron nail and the plastic spoon are attracted to the magnet.
Neither the iron nail nor the plastic spoon is attracted to the magnet.
The plastic spoon is attracted to the magnet, but the iron nail is not.
Complete the following sentences using these words: (overfishing – shelter – toxic – predator) 1. Healthy natural resources include clean air, healthy food, water and suitable _________.
shelter
overfishing
toxic
predator
The human activity that directly decreases the marine population is known as __________.
overfishing
recycling
afforestation
solar energy production
Complete the following sentences using these words: (overfishing – shelter – toxic – predator) 3. When a sea turtle eats a jellyfish, this means that the sea turtle is a __________ living organism.
predator
overfishing
shelter
toxic
Complete the following sentences using these words: (overfishing – shelter – toxic – predator) 4. Plastic waste materials are very harmful to marine organisms, because they are __________ and sharp.
toxic
shelter
overfishing
predator
Correct the underlined words: 1. There are tiny holes on the stem to allow gases passes into the plant.
stem should be replaced with leaf
stem should be replaced with root
stem should be replaced with flower
stem should be replaced with fruit
Correct the underlined words: 2. Plant's leaves help it to be fixed in the soil.
leaves should be replaced with roots
leaves should be replaced with stem
leaves should be replaced with flower
leaves should be replaced with fruit
It is a process by which a matter is changed from solid state to liquid state.
Melting
Evaporation
Condensation
Sublimation
The property of matter which is measured by the measuring cup.
Volume
Mass
Temperature
Density
A model of the whole world that is made in the shape of a large ball.
Globe
Map
Atlas
Poster
They are consumers which feed on secondary consumers.
Tertiary consumers
Primary consumers
Producers
Decomposers
Ice is turned into water when it is placed in a warm room because:
the heat from the room causes the ice to melt
the ice absorbs cold from the room
the ice evaporates in the room
the ice reacts with air in the room
Write the scientific term of each of the following: 1. The process of producing new plants. 2. A group of living organisms that can produce their own food. 3. Flying living organisms that build their nests on the top of mountain cliffs and dive deeply into the sea to eat. 4. The state of matter that has definite volume and shape.
1. Germination 2. Producers 3. Seabirds 4. Solid
1. Photosynthesis 2. Consumers 3. Mammals 4. Liquid
1. Pollination 2. Decomposers 3. Amphibians 4. Gas
1. Respiration 2. Herbivores 3. Insects 4. Plasma
Balloons and blimps filled with helium always rise up in the air because:
Helium is lighter than air, so it causes the balloon to float upwards.
Helium is heavier than air, so it sinks.
Helium reacts with air to produce heat, making the balloon rise.
Helium is magnetic and is attracted upwards.
Put (✓) or (X): 1. Healthy habitats provide living organisms with clean air, healthy food and water. 2. When particles of a matter absorb thermal energy, they move slower. 3. Recycling nutrients back to the ecosystem is the main function of the consumers. 4. From the chemical properties of helium is that it is not flammable.
Healthy habitats provide living organisms with clean air, healthy food and water.
When particles of a matter absorb thermal energy, they move slower.
Recycling nutrients back to the ecosystem is the main function of the consumers.
From the chemical properties of helium is that it is not flammable.
(B) What happens if plants have no stems?
Plants cannot stand upright.
Plants produce more flowers.
Plants grow taller than usual.
Plants have stronger roots.
When the plant seed begins to grow and makes sprouts, this process is called
respiration
germination
absorption
reproduction
Decomposers always ............ the soil.
pollute
damage
benefit
harm
The marine food web usually starts with
clam
algae
zooplankton
parrotfish
We can use a model to study very large things such as
solar system.
germs.
microbes.
viruses.
Look at the opposite figure, then put (✓) or (X): 1. Label ① refers to a matter in liquid state.
✓
X
Label ② refers to a matter in solid state.
✓
X
Label ③ refers to a matter that its shape and volume don't change.
✓
X
Look at the opposite figure, then put (✓) or (X): 4. Particles of matter ① move slower than particles of matter ③. ( )
✓
X
The volume of one liter of water has a mass of ...............
one gram.
one kilogram.
one milliliter.
one cubic centimeter.
When the water is heated, its particles ...............
move slower.
move faster.
move with the same speed.
do not move.
Salt can be separated by ............... of salty water.
melting
evaporation
freezing
condensation
In plant’s leaves, light energy of the Sun is converted into ............... energy during photosynthesis process.
sound
electrical
chemical
kinetic
Study the following figures that represent particles of three states of matter, then put (✓) or (✗): 1. Figure (1) represents solid matter.
True
False
Study the following figures that represent particles of three states of matter, then put (✓) or (✗): 2. Figure (2) represents liquid matter.
True
False
By increasing the spaces between the particles of figure (2), it will change into solid state.
✓
✗
Study the following figures that represent particles of three states of matter, then put (✓) or (✗): 4. Particles of figure (1) have more energy than particles of figure (3).
✓
✗
An area that provides food, water and shelter to all living organisms which live in it, is known as ...............
habitat
ecosystem
community
population
According to temperature, matter can be classified into ............... and ............... objects.
hot, cold
solid, liquid
light, heavy
big, small
Complete the following sentences: 3. Helium is not ............... or ............... , so it is considered as a safe gas.
poisonous, inflammable
radioactive, magnetic
toxic, corrosive
acidic, basic
Complete the following sentences: 4. Without ............... in the leaves of plants, gases can’t move in or out of the plant.
stomata
chlorophyll
roots
xylem
(B) Give a reason for the following: When the temperature of ice cubes increases, they will melt.
Because the increased temperature provides enough energy to break the bonds holding the ice together.
Because ice absorbs water from the air and turns into liquid.
Because ice cubes expand and become liquid at higher temperatures.
Because the air pressure causes ice to melt when temperature rises.
They are changes in matter which are usually reversible and don’t affect its structure.
Physical changes
Chemical changes
Nuclear changes
Biological changes
It is the process by which matter changes from liquid state to gas state.
Evaporation
Condensation
Sublimation
Freezing
A tool used to measure the length of wall.
Measuring tape
Hammer
Paint brush
Screwdriver
They are consumers that exist at the top of food chains.
Predators
Producers
Decomposers
Herbivores
What happens if a plant’s leaves don’t contain chlorophyll?
The plant cannot perform photosynthesis.
The plant grows faster.
The plant produces more flowers.
The plant's leaves turn bright red.
Complete the following sentences: 1. The food of plant is a type of ............ which is made in their ............ by photosynthesis process.
carbohydrate, leaves
protein, roots
fat, stems
vitamin, flowers
Complete the following sentences: 2. Sunlight energy converts ............ and ............ into glucose inside the plant’s leaves.
carbon dioxide, water
oxygen, nitrogen
glucose, starch
carbon monoxide, hydrogen
Complete the following sentences: 3. Bacteria and fungi are considered as ............ organisms, while rabbits are considered as ............ organisms.
decomposer, consumer
producer, decomposer
consumer, producer
producer, consumer
Complete the following sentences: 4. Particles of ............ matter can slide over each other, so they take the ............ of their containers.
liquid, shape
solid, color
gas, temperature
plasma, size
The roof of tropical rainforest homes is made of leaves and sticks because:
these materials are easily available in the rainforest.
they are the strongest materials found in the rainforest.
they help keep the house cool in cold climates.
they are waterproof and last forever.
Which of the following matter has a definite volume and shape?
Water
Milk
Ice
Air
In the presence of water, seeds can germinate at the beginning of growth without the need of ............
soil
rocks
insects
dry paper towel
Which of the following living organisms can make their own food?
Hawks
Mice
Pine trees
Caracals
If all grasses were removed completely from an ecosystem, rabbits in this ecosystem will ............
increase
decrease
die
not be affected
We can differentiate between sugar and flour by texture.
True
False
When a solid matter gains thermal energy, it will change into liquid state.
True
False
Plants and humans are similar in the way of getting food.
True
False
Human can eat plants and animals.
True
False
What happens to the microorganisms if the seawater becomes warm?
The microorganisms may die or decrease in number.
The microorganisms will multiply rapidly.
The microorganisms will turn into fish.
The microorganisms will become larger in size.
A human activity that leads to decreasing the number of fish and affecting many marine food webs.
Overfishing
Planting trees
Building roads
Using solar panels
The gas that is produced from photosynthesis process.
Oxygen
Carbon dioxide
Nitrogen
Hydrogen
A system of tubes through which water, nutrients and plant food are carried all over the plant.
Vascular system (or Xylem and Phloem)
Stomata
Chloroplasts
Root hairs
A property of matter by which we can distinguish between hot and cold objects.
Temperature
Mass
Volume
Density
(B) The temperature of a matter changes if the speed of its particles decreases.
It increases.
It remains the same.
It decreases.
It fluctuates randomly.
We can use thermometer to measure the temperature of a hot cup of tea.
True
False
If we increase the temperature of some pieces of ice, they will melt.
True
False
Photosynthesis process takes place in the plant roots.
True
False
The first link in any food chain is a consumer.
True
False
Chlorophyll in plant's leaves has an important role in photosynthesis process because:
it absorbs sunlight needed for photosynthesis.
it provides energy for plant movement.
it helps in water absorption from soil.
it protects the plant from insects.
