Notes

UNIT 1   LIVING THINGS AND NON-LIVING THINGS

• Things can be grouped as living things or non-living things.

• Living things are alive.

• Non-living things are not alive.

• Living things 

        * need food and water.

  

        * breathe.

        * can move by themselves.

        * grow.

        * can produce young.

• Human beings, animals and plants are living things. 

UNIT 2   OURSELVES

• We need food and water to stay alive.

• We need to eat different kinds of food to stay healthy.

• Some food give us energy, some food helps us to grow and some food helps us to stay healthy.

• We grow and change as we grow older. We grow in height, size and weight.

UNIT 3   ANIMALS

• Animals need food, water and air to stay alive.

• Some animals eat plants.

• Some animals eat other animals.

• Some animals eat plants and other animals.

• Animals grow in size and increase in weight.

• Some baby animals look like their parents.

• Some baby animals do not look like their parents.

UNIT 4   PLANTS

• Plants need the right amount of water for healthy growth.

• When a plant grows, it becomes taller, bigger and has more leaves.

• Flowering plants produce seeds which can grow into new plants.

• Different plants produce different kinds of seeds.

UNIT 5  THE MAGIC OF BATTERIES

• There are many things that use batteries. For example, torch and alarm clock.

• Things that use batteries have a battery holder.

• Batteries must be inserted correctly for things to work.

• To make a circuit, you must connect battery, wire and a bulb. If the bulb lights up, it is a complete circuit.

UNIT 6  MIXING THINGS

• Some materials can dissolve in water. They will disappear in water.

• When a material dissolve in water, we get a solution.

• Some materials cannot dissolve in water. These materials do not disappear water.

• You can check whether something dissolve in water by

        * tasting the mixture. 

       * filtering the mixture.

UNIT 7   PUSH AND PULL

• We push and pull to do many things.

• Pushing and pulling can

       * change the shape of objects.

       * make things speed up.
 

       * make things slow down. 

       * make things change direction.

• How things move depends on their size and how hard we push or pull them.

       * the harder we push and pull, the further the things moves. 

       * if we push or pull equally hard, the smaller things will move 

          further.
 

       * we should do the tests fairly.