Fun With Science! Trivia Quiz

Answer: Both

The chemical formula of water is H2O. Water has both the elements hydrogen and oxygen. The molar mass of H2O is 18. (Molar mass is the mass of 1 mole of any substance.)

Answer: CO2

Carbon dioxide occurs in Earth's atmosphere in the gaseous form. It is a greenhouse gas. The increase in the concentration of carbon dioxide results in global warming. The molar mass of CO2 is 44.

Answer: Cow

A herbivore is an animal that feeds only on plants and their products.

A tiger feeds on animal flesh and therefore it is a carnivore.

Both the crow and the bear are omnivores as they can feed on both flesh and plant products.

Answer: Radium

Radium is a radioactive element that is positioned in the group-2 (alkaline earth metals) in the Periodic Table.

All of argon, neon and krypton are inert gases and non-radioactive.

Answer: 206

There are total of 206 bones in an adult human.

It is interesting to note that a new born human baby has more bones than an adult. In the process of growth many bones join together by the process of ossification.

Answer: Force

Force is a physical quantity, which is essential for the movement of a body which is initially at rest. There are various ways to calculate force, but the most basic way is by multiplying mass of the object by its acceleration.

Answer: Tin

Tin is a transition element located in the d-block of the Periodic Table.

The atomic number of tin is 50 and its atomic mass is 119.

Answer: False

The cell wall is found only in plant cells. A cell wall is a non-living structure that provides protection to the plant cell.

Answer: True

Hydrogen is the lightest element in the Periodic Table with only one proton in its nucleus.

It has two heavier isotopes that are deuterium (atomic mass 2 {1 proton + 1 neutron}) and tritium (atomic mass 3 {1 proton + 2 neutrons}).

Answer: False

The femur is the thigh bone (located in your leg) while the breast bone is the sternum, located in your chest.