Science Practice Test - 1 - Class 5 MCQ

The leaves take in sunlight so bigger leaves would make room for more sunlight to be absorbed.

A voluntary muscle is a muscle that you choose to move, like those in the arms and legs, as opposed to the ones that move automatically, like the stomach, intestine, and heart.

When solid ice gains heat, it changes state from solid ice to liquid water in a process called melting.

A push or a pull is a force. A force that changes the direction of an object towards you, would be a pull. On the other hand, if it moves away, it is a push.

Chemical energy is energy stored in the bonds of atoms and molecules. The battery is an example of chemical energy.

Energy is defined as the strength or capacity required for doing a physical or mental activity.

A dam is a structure built across a stream or river to hold water back. The water in the dam is stored is standing still and isn't moving. 

Snakes do not have legs. A snake moves by curving and straightening its body.

Platypus lays eggs.

Plastic does not decompose while others decompose in the soil. So, the plastic glass will stay the same.

The elbow is a hinged joint made up of three bones, the humerus, ulna, and radius.

The air pressure plays an important role in the filling of a syringe as the liquid medicine rushes into the syringe when the air pressure inside it decreases on pulling the piston out.

The vertebral column provides attachments to muscles, supports the trunk, protects the spinal cord and nerve roots.

The salt can be separated from the sea water by a simple process of evaporation.

Some plants, like kauri and maple trees, have ‘winged’ seeds. With wind dispersal, the seeds are simply blown about and land in all kinds of places.

The percentage of oxygen and carbon dioxide in inhaled air is 21% and 0.04% respectively. During respiration, oxygen is used up by the cells producing carbon dioxide. The percentage of carbon dioxide in exhaled air is 4.4% and oxygen is 14-16% and nitrogen is 78%. 

An astronaut is a person who is trained to travel in space.

Plastics can't be recycled, so the correct option is Plastic tins.

Water is Vaporised to form clouds. Clouds are then condensed and rain falls.

Gravity is a force that tries to pull two objects toward each other. Earth's gravity is what keeps you on the ground and what causes objects to fall.

The most common accidents happen because of the carelessness of others, our carelessness, and hurry.

Aquatic animals do not have dry skin with hair as they live in water.