Online Quiz » Science Quizzes for Kids »

# Science Quiz for Secondary School Students

## Science Quiz

For each question, select the correct answer from the options given.

• 1. which of the following is the equation used to calculate a substance’s density?
A. D=V/M
B. D=M/V
C. D=M+V
D. D=V×M
• What happens to a solid object with a density that is less than the density of water when it is placed in water?
A. The object dissolves in water.
B. The object is half immersed.
C. The object sinks to the bottom.
D. The object floats on top of the water.
• Which of the following is the best for expressing the density of a solid?
A. g/mL
B. m³/kg
C. g/cm³
D. N/ cm³
• Which physical property of matter describes the relationship between volume and mass?
A. density
B. ductility
C. reactivity
D. weight
• Why does ice float on water?
A. Ice has a lower density than water.
B. Ice has a higher density than water.
C. Ice is a solid.
D. Ice is colder than water.
• If you have 5 ml of liquid that has a mass of 20g, find the density of the liquid.
A. 0. 79 mL/g
B. 0.79 g/ mL
C. 1.26 mL/g
D. 4 g/mL
• To compare the densities of water and oil, pour them into a container and observe how they …………………………….
A. change colour
B. evaporate quickly
C. separate into layers
D. create an odor
• What units would you use to measure liquid volume in an experiment?
A. grams or kilograms
B. meters or centimeters
C. newtons
D. litres or millilitres
• Ships are usually very big and heavy. Yet they float on water. What is the reason for this?
A. The hollow shape of the ship
B. The huge size of the ship
C. The weight of the ship
D. The colour of the ship
• In a beaker of two liquids, solid X floats on liquid Y, but sinks in liquid Z. Which of the following is true?
A. Liquid Z is water and Liquid Y is oil
B. Solid X is less dense than liquid Z
C. Liquid Y is denser than liquid Z
D. Liquid Z is denser than liquid Y
• When heat is applied to a substance, its density …………………………. Because its volume is ………………..
A. decreases, decreased
B. increases, decreased
C. decreases, increased
D. increases, increased
• The volume of a substance X is twice that of another substance Y. Both the substances have the same mass. What can we infer about their densities?
A. The density of X is twice that of Y
B. The density of Y is half that of X
C. The density of X is half that of Y
D. X and Y have the same density
• A block made of substance X sinks in pure water, but floats on sea water. Which of the following statements is correct?
A. The block is heavier in pure water than in sea water.
B. The block absorbs pure water causing it to sink but it does not absorb sea water.
C. The density of the block is greater than pure water but less than sea water.
D. The density of the block is less than pure water and more than sea water.
• Which of the following is not classified under plant kingdom?
A. Conifers
B. Fungi
C. Ferns
D. Mosses
• What do whales and sardines have in common?
A. They are cold-blooded
B. They have scales
C. They breathe through lungs
D. They have streamlined body shape
• Which of the following pairs of animals are cold-blooded?
A. Snake and frog
B. Emu and crocodile
C. Shark and whale
D. Dolphin and tortoise
• Which of the following descriptions of a scorpion is correct?
A. It is a vertebrate with jointed legs.
B. It is a vertebrate with non-jointed legs.
C. It is an invertebrate with jointed legs.
D. It is an invertebrate with non-jointed legs.
• Which of the following groups have segmented exo-skeleton?
A. insects
B. mammals
C. vertebrates
D. snakes
• Organisms can be classified according to certain basic features. Which of the following is not considered a basic feature?
A. The body structure of the animal
B. Reproduction of the animal
C. The colour of the animal
D. The way the animal feeds