YEAST

  Yeast multiplies by special metode of cell division.It called budding .During the process of budding,a small bud grows from a yeast cell.The bud increases insize and breaks away from the original yeast cell.

6C talk show

last week,we did an alternative assestment 2.The alternative assestment is about alcohol,drugs,and tobacco(science textbook unit 2.My group are with Rara,Stanley,Samiel,and Gerry.But Rara and me didn't do the talkshow because Rara and me not yet write the sentences.

I was at the back (in the picture)just watching the others talkshow.
Link:www.thecochrainelibrary.com

unit 18:air and water
air
Living things need a constant supply of oxygen and carbon dioxide in the air to survive.They also constantly give out carbon dioxide.Oxygen in the air never runs out,and the air is never completely filled with carbon dioxide clue to the oxygen and carbon dioxide cycle.
water
Water never runs out on the earth due to the water cycle.The water cycle is the continuous movement of water from the earth,to the sky and back to the earth.Movement of water in the water cycle requires neat from the sun to take place.

unit 21:Light and Heat
Light
light travels in a straight line and prom one medium to another and causing refraction.
refraction:
-when light passes through.
-a prism.
-droplets of rain.
-waterfall.
-spray of water from a garden hose
(all of these causing dispersion of the component colours of light.)
Colour of Light:
-Red
-Orange
-Yellow
-Green
-Blue
-Indigo
-Violet
Heat
Travels through conduction,convection and radiation.

unit 24:SOIL
Soil is a mixtureof decayed plants and animals,and small pieces of broken rocks,such as sand,silt and clay.The rocks are broken as a result of a process called Weathering.

Weathering is brought about by various agents in our environment,such as:
-Wind
-Waves
-Plants and Animals
-Frozen Water
-Water
-Heat from the Sun
-Human Activities


~SOIL EROSION~
The removal of soil by wind and rain is called soil erosion.Soil erosion occurs when soil gets blown by the wind or washed away by water.

The occurrence of the soil erosion depends on farious factors such as:
-Speed and Volume of running water.
-Amount of vegatation.
-Slope of land.
-Dryness and size of soil particles.

unit 23:Sound
Sound also travels in a similar way.When an object produce a sound, the sound travels away from the object
in all directions.The object producing the sound is called the source of the sound.

The loudness of a sound decreases as the sound travels farther away from the source.So, when we are very close to the source of a sound, it is very loud.As we move away from the source, the sound becomes softer.

Sounds requires a medium to travel.When an alarm clock rings, we can hear the sound because the sounds travels through the air and reaches our ears.In this case air is the medium through which sound travels.A space that has no matter in it is called a vacuum,A vacuum can be created in an empty jar by sucking out all the air from it.We cannot hear an alarm clock when it rings inside a jar with a vacuum,because there is no air or any other medium through which the sound can travel.Sound can travel through solid,liquid,and gas

REFLACTION

Making an electric circuit is fun but maybe it's a little bit hard.But if we do it really serious and concentrate
we can do it a little by a little.We can make a simple electric circuit.The materials are:
-Batteries
-Alligator clips
-Wires
-Bulbs
-Switch
We must very carefull when we want to cut the wires because when we want to cut the wires,the wire
will easily can be cut.