SCIENCE WEEK "CHALLENGE" FOR 8TH GRADES

BIOLOGY

100

Which blood cells have nucleus?

A) RBC

B) WBC

B) WBC

200

The _____ is a sheet of muscle which divides your chest from rest of your organs.

A) Pleura

B) Trachea

C) Diaphragm

C) Diaphragm

300

Exhaled air contains:

A) 79% O₂, 16% CO₂ and 4% N₂

B) 79% CO₂, 16% N₂ and 4% O₂

C) 79% N₂, 16% O₂ and 4% CO₂

D) 79% N₂, 16% CO₂ and 4% O₂

C) 79% N₂, 16% O₂ and 4% CO₂

400

Write down chemical equations of both aerobic and anaerobic (in yeast) respirations.

Aerobic: glucose + oxygen --> carbon dioxide + water + (energy)

Anaerobic: glucose --> lactic acid + carbon dioxide + (energy)

500

Give 3 common triggers for asthma?

Any 3 of: wheezing, coughing at night, shortness of breath, difficulty breathing, a tight feeling in chest.

PHYSICS

100

1)

A)

B) 

B

200

2)

A)

B)

C)

C)

300

3) 

A)

B)

C)

D)

A)

400

4)

A)

B)

C)

D)

D)

500

5) 

A)

B)

C)

D)

B)

GENERAL KNOWLEDGE

100

Who won the last football World Cup?

A) Qatar

B) Argentina

C) Spain

D) Morocco

B) Argentina

200

What language does the word Algebra come from?

A) Latin

B) Greece

C) Arabic

D) English

C) Arabic

300

What number president is the current president of the Kyrgyz Republic? 

A) 4

B) 5

C) 6

D) 7

C) 6

400

There are more than 1500 types of AI Apps among the world.

A) True

B) False

A) True

500

Who's speech was the following:

“I have reached the peak of success in the business world; in the eyes of others, my life is the essence of success. However, apart from work, I have little joy. After all, wealth is just a fact of life that I'm used to."

A) Mark Zuckerberg

B) Bill Gates

C) Chyngyz Aitmatov

D) Steve Jobs

D) Steve Jobs