Grade 4 Science Quiz Bee Review 2

A comprehensive vocabulary review of core science concepts covering matter and states of matter, human sensory anatomy and disorders, animal behavior and classification, and atmospheric science.

Volume

The amount of space occupied by matter.

Mass

The amount of matter inside an object.

Hardness

The ability of a solid to resist scratching or breaking.

Brittleness

The property that makes solids easy to break.

Malleability

The ability of metals to be hammered into different shapes.

Ductility

The ability of metals to be easily bent or stretched, just like copper wires.

Fluidity

The ability of liquids to flow.

Phase Change

The change of state in matter brought about by changing its temperature.

Thermometer

An instrument used to measure the temperature of an object.

Kelvin

The standard unit of measurement for temperature.

Melting Point

The temperature at which a solid starts to melt.

Freezing

The process of changing a liquid into a solid, such as water into ice cubes.

Evaporation

The process of changing liquid to gas, such as vapor rising from boiling water.

Sublimation

The phase change directly from solid to gas without passing through the liquid phase, as seen when exposed mothballs shrink.

Condensation

The process that changes gas into liquid, such as water droplets forming when breathing onto a mirror.

Deposition

The process in which gaseous materials change directly into a solid without passing through the liquid phase, such as the formation of frost on cold windows or leaves.

Photosynthesis

The process of food-making among plants.

Herbivores

Animals that only eat plants, such as cows, goats, horses, and rabbits.

Carnivores

Animals that consume only meat or flesh in order to survive, such as lions, tigers, sharks, and snakes.

Omnivores

Animals that eat both plants and animal flesh or meat to survive, such as bears, monkeys, and humans.

Reflexes

An instant reaction performed as an automatic response to a certain stimulus, such as blinking when exposed to dust.

Asimo

A humanoid robot developed and designed by Honda in October 2000.

Cornea

The transparent film-like covering of the eye that controls and focuses the amount of light entering it.

Iris

The colorful part of the eye that regulates the amount of light that enters the pupil.

Pupil

The center opening of the iris through which light enters the eye.

Lens (Eye)

A clear, colorless structure located behind the iris that receives light entering through the pupil.

Retina

The part of the eye located at the back that receives light from the lens and forms an inverted image.

Sclera

The white part of the eye that surrounds the pupil and iris.

Optic Nerve

The nerve that sends messages to the brain regarding the visual images seen.

Conjunctivitis

An eye infection that makes the eyes pinkish, itchy, sore, and painful; also referred to as Sore Eyes.

Sty

An eye illness characterized by a painful boil-like swelling on the eyelid (known as binggit in Bisaya).

Hyperopia

Farsightedness; a condition where distant objects are perceived better than objects that are near.

Myopia

Nearsightedness; an eye condition where near objects are seen clearly, but distant objects appear blurry.

Astigmatism

An eye condition caused by a curved eyeball or irregularly shaped cornea that blurs vision and prevents proper focusing.

Pinna

The outer part of the ear (also known as auricle) that collects sound waves and is where earrings are placed.

Eardrum

The part of the ear that vibrates upon receiving sound waves from the ear canal.

Hammer, Anvil, and Stirrup

The three tiny bones connected to the back of the eardrum that transmit vibrations from the eardrum to the inner ear.

Cochlea

A snail-like inner ear structure that transforms vibrations from the three tiny bones into signals.

Organ of Corti

The primary organ of hearing located within the cochlea.

Auditory Nerve

The nerve responsible for transmitting sound signals from the ear to the brain.

Otitis Externa

An inflammation of the external ear canal caused by bacteria, commonly known as Swimmer's Ear.

Otitis Media

An ear condition characterized by inflammation of the middle ear and the accumulation of pus in the eardrum.

Tongue

The sense organ utilized for tasting, swallowing, and speaking.

Papillae

Small bumps on the surface of the tongue where many taste buds are located.

Thrush

A common oral condition characterized by white bumps on the tongue, cheeks, or mouth that hinder swallowing and eating.

Nostrils

The two external openings of the nose through which air passes.

Cilia

Tiny hairs inside the nose that filter out dust and prevent foreign particles from entering.

Mucus

A sticky fluid secreted in the nose to trap dust, germs, and other substances.

Olfactory Nerve

The cranial nerve that transmits smell signals from the nose to the brain.

Epistaxis

Nose bleeding caused by ruptured blood vessels in the nasal cavity, often provoked by excessive heat or cold.

Allergic Rhinitis

Inflammation of the nasal cavity and mucous membranes triggered by allergens such as pollen or dust.

Epidermis

The outermost protective layer of the skin.

Pores

Tiny openings in the skin through which sweat is excreted.

Dermis

The structural layer of the skin situated directly beneath the epidermis.

Sweat Glands

Glands located in the dermis that produce sweat or perspiration.

Oil Glands

Glands in the dermis that secrete sebum, serving as the skin's natural lubricant.

Hypodermis

The subcutaneous layer of the skin composed primarily of fat that insulates the body and absorbs shocks.

Acne

A skin disease characterized by excessive pimple outbreaks, especially on the face.

Eczema

A skin inflammation that results in itchy, scaly, and patchy rashes.

Dandruff

A scaly, itchy scalp condition marked by shedding white or grayish flakes.

Warts

Small, rough skin growths triggered by a viral infection that induces rapid cell proliferation.

Hives

An allergic skin condition appearing as raised, red, and itchy patches.

Skin

The largest organ of the human body.

Learned Behavior

A behavior that is acquired or altered through experience, such as cats running to the kitchen when hearing an electric can opener.

Health

The overall condition and soundness of the body and mind, characterized by freedom from disease or ailment.

Camouflage

The ability of an organism to hide from predators by blending in with the colors and patterns of its surrounding environment.

Oil

A non-renewable natural resource colloquially referred to as 'black gold.'

PAGASA

Philippine Atmospheric Geophysical Astronomical Service Administration.

Precipitation

The process by which condensed water becomes too heavy in clouds and falls back to Earth as rain.

Predators

Animals that hunt, kill, and feed on other animals.

Prey

Animals that are hunted, killed, and eaten by predators.

Habitat

The natural environment where an organism lives, finds food, and interacts with other organisms.

Terrestrial Animals

Animals that live primarily on land, including in forests, farms, or domestic households.

Aquatic Animals

Animals that reside in water bodies such as oceans, seas, lakes, rivers, and ponds.

Amphibians

Animals capable of living both in water and on land, such as frogs and turtles.

Aerial Animals

Animals that fly or glide through the air, including birds and flying insects.

Arboreal Animals

Animals that predominantly live in and inhabit trees, such as bats, monkeys, and tarsiers.

Viviparous

Animals that give birth to live young, such as dogs, cats, horses, pigs, and humans.

Oviparous

Animals that reproduce by laying eggs from which offspring hatch, such as frogs, chickens, and ducks.