Primary 1 Science

The organ for seeing, like a tiny camera.

The organ for hearing sounds.

They cut and chew food to help digestion.

The bones in the middle of the back that hold the body upright.

To break food into small pieces with the teeth.

The way we stand or sit; good posture is upright.

To keep the body safe from harm.

The ability of the eyes to see.

To stop and relax so the body recovers.

Eating suitable amounts of all kinds of food.

Body activities like running and swimming that make us strong.

The time we rest with eyes closed; the body grows and repairs during sleep.

Something we do every day until it becomes natural.

The feeling in our heart; a happy mood keeps us healthy.

A chart that shows what to do at what time each day.

The power we need to work and play.

To relax so the body recovers its strength.

The process of growing taller and bigger.

Something with life that grows and reproduces, such as animals and plants.

Something without life that does not grow, such as stones and toys.

The process of living things getting bigger and changing.

To produce young, such as birds laying eggs and plants making seeds.

To answer changes around us, like the mimosa closing its leaves.

A common feature of animals; they move in their own ways.

The commonest small brown bird in Hong Kong, hopping about for food.

A common big tree in Hong Kong parks with beard-like hanging roots.

Brightly coloured fish in park ponds that breathe with gills in water.

To treat animals and plants gently and protect them from harm.

To become taller and heavier and learn more skills.

A child from birth to about one year old.

A child of about one to six who learns to walk and talk.

A person of about six to twelve, studying in primary school.

The length from the feet to the top of the head.

How heavy the body is.

The first set of teeth in childhood, which fall out.

The new teeth that grow after baby teeth fall out and never change again.

To find height or weight with a ruler or a scale.

A chart of the numbers measured each time.

What things look like; water and air have no colour.

What the nose senses; water and air have no smell.

What the tongue senses; clear water has no taste.

The outer form of a thing; water and air have no fixed shape.

Water moving from high places to low places.

Air truly exists and fills a place.

A small test to check our ideas.

Little round balls of air rising in water.

Able to see through, like clear water.

What things are made of, such as wood, metal and plastic.

How heavy or light a thing feels.

Whether a thing is easy or hard to squash or bend.

The feature of returning to the original shape after a change.

A small elastic ring that stretches and snaps back.

A soft object full of little holes; it springs back after being pressed.

Letting light pass through, like glass.

Not letting light pass through, like wood.

To sort things into groups by their features.

To look at and feel things carefully to learn about them.

The energy that lets us see; it comes from light sources.

Something that shines by itself, like the sun and a lamp.

The brightest light in the daytime, the main source of light and heat for the earth.

A hand lamp for walking at night and blackouts.

Making a place bright with light.

The dark shape made when light is blocked by an opaque object.

Not letting light pass, so it makes a shadow.

The band of seven colours made when sunlight is spread by water drops.

Something that glows when burning; a man-made source — beware of fires.

A game of making shadow shapes with hands between a lamp and the wall.

The change of position of an object.

The place where an object is.

Direction words for position; they depend on what we compare with.

Direction words for position; they may differ from person to person.

Words to describe distance.

Playground equipment that swings to and fro.

A common public vehicle in Hong Kong; it travels fast.

Words to describe the speed of motion.

To see which is faster or which is farther.

A ball game played with the feet; the ball moves when kicked.

The planet we live on; big and round like a ball.

The huge salty water covering most of the Earth's surface.

The dry part of the Earth's surface, with mountains, plains and cities.

The outermost layer of something; the Earth's surface has oceans and land.

A model of the Earth that helps us see where oceans and land are.

The layer of air around the Earth, like a protective coat.

A person who travels into space and takes photos of the Earth.

Another name for the Earth, because oceans cover most of it.

To keep something safe from harm.

The place where people, animals and plants live; the Earth is our home.

Things we throw away; put them in the bin or the recycling bin.

Making the air, water or land dirty and harmful.

Collecting used things so they can be made into new things.

Using less water, such as turning off the tap when brushing teeth.

Using less electricity, such as switching off lights when leaving a room.

The air, water, land and living things around us.

The living things on Earth that share the home with people.

To treasure and look after without harming.

The star that gives the Earth light and heat.

The time when the sun rises in the east and the sky grows light.

The time when the sun sets in the west and the sky grows dark.

The direction the sun rises from.

The direction the sun sets towards.

The dark shape made when something blocks light; it changes with the sun.

The time when our side of the Earth faces the sun.

The dark time when the sun does not light our side.

Animals that are active in the daytime, like butterflies and sparrows.

Animals that are active at night, like owls and bats.

Products that work with electricity, such as tablets and phones.

A handheld device with a touchscreen.

The surface that shows pictures and words.

The time spent using screens each day; keep it limited.

The way we hold our body; sit upright when using devices.

The ability of the eyes to see; too much screen time can harm it.

To stop and relax so the body recovers.

Polite ways of behaving, such as keeping the volume low in public.

An agreement everyone makes and follows, such as screen rules.

Found in nature, not made by people.

Designed and made by people.

To plan how a thing looks and works.

To make things out of materials.

What things are made from, like wood, cloth and metal.

The shell of a sea creature; a natural object.

The part made for holding, like a cup handle or umbrella handle.

Made to stop slipping, like the patterns on shoe soles.

Easy and handy to use; good design makes life convenient.

The process of using science to solve problems and make things.

To think through the steps and what is needed.

A sample made from a design.

To try a work to see whether it meets the goal.

To make the design better after finding problems.

To tell others about your design and how you made it.

Thick, stiff paper used to build the lampshade.

Thin, translucent paper that lets light pass through.

Translucent paper that lets light through softly.

Letting some light pass through, like cellophane.