Primary 6 Science Preliminary Examination Review

Flashcards of key vocabulary from the provided science lecture notes.

Mushrooms and Moss

Organisms found on old tree stumps in forests.

Digestive System

A series of organs in the human body that digests and absorbs food.

Roots

The part of the plant that anchors it to the ground.

Flower

The part of the plant that can attract insects.

Nucleus

The structure that controls activities in the cell.

Cell Membrane

The structure that surrounds the cell.

Water Transportation

The term for the process of water movement in a plant from roots to leaves.

Heart

The organ that pumps blood throughout the body.

Lungs

The organs where gas exchange occurs in the body.

Germination

A stage in the life cycle of a plant when a see begins to grow.

Fertilisation

The process by which pollen is transferred to the ovule.

Dispersal

The scattering of seeds away from the parent plant.

Larva

A stage in the life cycle of a butterfly.

Pupa

A stage in the life cycle of a butterfly.

Insecticides

A substance used to kill insects.

Photosynthesis

The process by which plants make their own food using sunlight.

Deforestation

The removal of trees.

Acid Rain

Rainfall made acidic by pollutants in the atmosphere.

Habitat

A community of living organisms and their physical environment.

Population

A group of individuals of the same species living in the same area.

Producer

An organism that makes its own food.

Consumer

An organism that eats other organisms.

Stored Energy

A measure of how much energy is stored in a substance.

Compress

To press something into a smaller space.

Volume

The amount of space that a substance occupies.

Star

A natural source of electromagnetic radiation.

Mirror

A means of reflecting light.

Evaporation

The process where a liquid changes into a gas.

Conductor

A material that allows electricity to pass through it easily.

Switch

A device that opens and closes an electrical circuit.

Electromagnet

A magnet made by passing electric current through wire wrapped around a magnetic core.

Friction

A force that resists motion between surfaces in contact.

Energy

The capacity to do work.

Potential Energy

Energy possessed by an object due to its motion or its position.

Heat Energy

Energy that matter possesses because of its temperature.

Kinetic Energy

Energy an object has due to its motion.

Temperature

A property of matter that determines the direction of heat flow.