Science Theory-1A

小学IMSO科学竞赛试题

theory 1 PROBLEM SET SCIENCE THEORY – I 1

小学IMSO科学竞赛试题

1. Choose the RIGHT statement

a. For the Moon to cover the Sun and thus to produce a solar eclipse, it must be at a full moon phase.

b. A star sets at 10 PM tonight. Tomorrow it will set earlier

c. On the opposition, Mars is in its longest distance from the Earth

d. The Sun never rises at South Pole in December

e. The Earth moves fastest at its aphelion during its revolution around the Sun

(point 2)

2. Choose the RIGHT statements (may be more than one)

a. After the Sun, the nearest star to us is Alpha Centauri in the Southern Hemisphere b. We always see the same stars all over the year due to the Earth’s revolution

c. Supernova is a stellar outburst or explosion in which a star suddenly increases its luminosity from hundreds of thousands to hundreds of million times

d. A circumpolar star is a star which is always above the horizon

e. Andromeda is the nearest extragalaxy to us

(point 2)

3. List the distance between two bodies below in right order from the smallest to the largest

i. The Solar System - Alpha Centauri

ii. The Sun – Pluto

iii. The Earth – the Moon

iv. The Earth – the Sun

v. The Solar System – Andromeda Galaxy

(point 2)

4. What is the latitude of

a. The North Pole

b. The South Pole

c. A place in the Equator

(point 1.5)

5. What is the phase of the Moon when it is on the meridian (the highest point) at

a. 6 PM

b. Midnight

c. 6 AM

(point 3)

6. Venus is one of the inner planets in our solar system. Is it possible to watch it at midnight?

Draw a diagram to explain your answer.

(point 3)

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小学IMSO科学竞赛试题

7. Look at the following picture:

Episcia reproduces young plants by runners From the picture above :

A. How many runners shown in the picture? Answer:

B. Which one is the oldest runner?

Answer:

C. A runner is a special kind of ……………………… (choose one right answer: Stem/root/leaf/flower/plants) (points 2)

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小学IMSO科学竞赛试题

8. Figure below shows a complete bulb plant.

A. Part of plant which absorb water and mineral is ……….

B. Part of plant which produces carbohydrates is ………...

C. Where is the food stored?

(points 2)

9. Look at the figure below

Questions:

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小学IMSO科学竞赛试题

A. Write down the name of parts of the flower!

Answer:

B. Which part of flower that function to attract the insect?

Answer:

C. Which part of flower produces the pollen?

Answer:

D. How many ovary does this flower have?

Answer:

E. The flower indicates as :

a. perfect flower

b. imperfect flower

c. complete flower

d. incomplete flower

(5 points)

10. Among the following plants that can be classified into the same group are:

A. corn, coconut, grape

B. pine tree, lily, coconut

C. apple, pine tree, peanut

D. corn, lily, coconut

E. apple, grape, pine tree

(points 2)

11. What is the name of the process which is responsible for the production of oxygen by green plants? (point 1)

Answer:

12. What are plant needed for the process in no. 11 and what substances are produced? ( point 2)

Answer:

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