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WorksheetsGrade 7 Revision Test
Total questions: 36
Worksheet time: 32mins
The above lens is a type of ___.
diverging lens
converging lens
divergent lens
convergent lens
Which lens represents the path light takes through a diverging lens?
What type of lens is used in the shown instrument?
concave lens
convex lens
reflection lens
reduction lens
What type of lens creates the image seen in the eyeglasses?
convex
concave
reflection
plane
A lens that is thinner in the middle than on the outside is called ___.
diverging
concave
convex
achromatic
The side view mirrors on your car help shrink the image on both sides of the car, allowing you to see a larger field of view. What type of mirror is this?
a convex mirror
a concave mirror
a convex lens
a concave lens
A dentist uses a small dental mirror to help magnify teeth in your mouth. What type of mirror is this?
a convex mirror
a concave mirror
a convex lens
a concave lens
Type of mirror that can produce an inverted image...
Plane
Convex
Concave
According to the law of reflection the angle of incidence is ____________ the angle of reflection.
less than
greater than
equal to
In the illustration, the light ray striking the object is-
A student placed a pencil in a cup of water. The pencil appears broken because light
always travels in a straight line.
bends when it passes through water.
makes the water in the glass evaporate.
reflects the pencil on the water's surface.
Gills take in oxygen from the water while lungs take in oxygen from the air.
Which of the following statements is false?
Earthworms breathe through their moist skin
Cockroach takes in air through tiny air tubes called tracheae which release oxygen into the blood stream
Fish take in oxygen dissolved in water through their gills
The body of cockroach is divided into three parts- abdomen, thorax and head
Due to accumulation of which acid there is muscle cramp?
Hydrochloric
Lactric
Ammonium
Latic
Breathing is also known as ___ respiration?
Internal
External
Intracellular
Extracellular
Is yeast a Anarobic or aerobic excreting organisms?
Anarobic
Aerobic
What is the chemical formula for glucose?
C6H12O6
C12H6O12
C6O12H6
6CH2O
When we inhale air, it passes through our nostrils into the
Nasal cavity
Chest cavity
Tracheae
Spiracles
During inhalation diaphragm moves
down
left
right
up
When zoom into a leaf, structure as shown. Name B which can open and close for gaseous exchange in plants.
Lenticel
Stoma
Guard cell
Chloroplast
When zoom into a leaf, structure as shown. Name A which control the opening and closing of B.
Lenticel
Stoma
Guard cell
Chloroplast
Stoma _________ during night
open
close
Name this process
respiration
photosynthesis
gaseous exchange
Which of the following correct about photosynthesis?
Take in oxygen
Occur day and night
Process for all living things
Give out oxygen
