Saturday, 8 December 2012

The Relative Size and Distance of the Earth, the Moon and the Sun

The Relative Size of the moon, the Earth and the Sun.



The Relative Distance of the moon, the Earth and the Sun.


Solar System 【Images】




Our galaxy - the Milky Way - is a spiral galaxy with arms extending from the center like a pinwheel. Our solar system is in the Orion arm of the Milky Way. Our Sun is one of about 100 billion stars in the Milky Way. And our galaxy is just one of roughly 100 billion in the visible universe.


The SUN




MERCURY



VENUS




EARTH



MARS



JUPITER



SATURN



URANUS



NEPTUNE



Solar System 【Video】





Friday, 7 December 2012

Exercise 2

Link to : Basic Needs of Organism

Choose the correct answer.

1. Which of the following is not the basic needs of a human?
A. Food
B. Fertilizer
C. Water
D. Shelter

2. Why do humans needs to eat food?
I. To get energy
II To grow
III To stay healthy
A. I and II only
B. I and III only
C. II and III only
D. I, II and III

3. Why do plants need water?
I. To carry out photosynthesis
II To support the stem
III To reduce heat
IV To obtain energy

A. I and II only
B. II and III only
C. I,II and III only
D. II, III and IV only

4. Which of the following is not paired correctly?

Animal
Food
A
Bee
Nectar
B
Frog
Insect
C
Snake
Grass
D
Panda
Bamboo leaves



5. What role does chlorophyll play in photosynthesis?
A. To absorb water
B To produce chemical reaction
C To absorb sunlight
D To turn into sugar






^_^









Answer:

1. B
2. D
3. C
4. C
5. C