WorksheetsScience Nafs diagnostic test 2
Total questions: 20
Worksheet time: 10mins
Which unit is used for density?
grams
liters
cubic centimeters
grams per cubic centimeters
The place of an element in the modern periodic table is determined by its _____.
atomic number
atomic mass
density
chemical activity
Which of the following elements is the most common element in the universe?
hydrogen
helium
nitrogen
oxygen
Which of the following can NOT be used to separate heterogeneous mixtures?
a strainer
a magnet
a scoop
a microscope
Three examples of physical change are _____.
boiling water, a nail rusting, a melting candle
a pond freezing, breaking glass, a burning candle
melting ice, mowing the lawn, carving a statue
applying lipstick, making lemonade, baking bread
what turns litmus paper to blue?
acids
bases
salts
all
Which of the following is not a benefit of bacteria:
Energy production.
Starch production.
Food industry.
Water production.
What is produced when mitochondria stop working in cells?
The size increases.
The cell will die.
Don't be affected.
Replace what is lost.
What process is associated with the presence of the green pigment chlorophyll?
Cellular respiration.
Digestion.
Photosynthesis.
Active transport.
When snakes are killed in an agricultural field, what type of population increases?
Agricultural crops.
Field mice.
Migrated birds.
Group of cows.
Muhammad loves playing with the ball and soon feels difficulty breathing. In your opinion, what is the reason for this?
Iron deficiency.
Lack of calcium
Phosphorus deficiency.
Potassium deficiency.
Which of these best defines mass?
the amount of space occupied by an object
the distance between two points
the quantity of matter in an object.
the interval between two events.
How is speed defined?
acceleration/time
change in velocity/time
distance/time
displacement/time
The part of the experiment that remains the same for the control and experimental group
control variable
constant
independent
data
Scientists calculate measurements of various objects on Earth and in space. Which is a constant effect in these experiments?
throwing some objects and dropping others
measuring different falling times for each object
dropping each object from the same height
dropping a variety of objects
This is a question about a long distance runner who runs at 3m/s. How far will they run in 10 s?
30m
20 m
10m
40m
Thermal energy moves from an object with a
lower temperature to an object with a higher temperature
lower mass of an object with a higher mass
higher temperature to an object with lower temperature
higher mass to lower mass
Generally, molecules of a solid are more__________ than are molecules of other states.
spread out
close together
highly active
free to move
Which type of blood vessels carries oxygen rich blood away from the heart?
Artery
Vein
capillary
Valve
Which chamber of the heart pumps oxygenated blood to the body?
Left atrium
Left ventricle
Right atrium
Right ventricle
