Question 9. “Calcium is a ... (1) ... which helps you to grow strong ... (2) .... Calcium can be found in ... (3) ....”. The appropriate words to fill in the blanks (1), (2), (3) respectively are 10 điểm   

A. protein, bones, meat   

B. protein, heart, milk   

C. mineral, heart, meat   

D. mineral, bones, milk

Question 9. “Calcium is a ... (1) ... which helps you to grow strong ... (2) .... Calcium can be found in ... (3) ....”. The appropriate words to fill in the blanks (1), (2), (3) respectively are 10 điểm   

A. protein, bones, meat   

B. protein, heart, milk   

C. mineral, heart, meat   

D. mineral, bones, milk

Question 1. Which of the following is an electrical insulator?    

A. Gold   

B. Rubber   

C. Aluminum   

D. Copper

Question 1. Which of the following is an electrical insulator?    
A. Gold
   
B. Rubber
   
C. Aluminum
   
D. Copper

Đáp án:

C. Evaporation and boiling

HT ~!

Question 3. Which process(es) can change a material from liquid to gas?   

 A. Only evaporation   

B. Only boiling   

C. Evaporation and boiling   

D. Evaporation, boiling, and melting

Trả lời:

B nha

HT

trả lời :

B nhá

^HT^

Question 9 : 

Rubber is a good       material but plas is not.

A. elas

B. flexible

C. waterproof

D. insulating

Question 10. Why don’t we burn plas trash?10 điểm   

A. Because we do not have enough fuel.   

B. Because plas is non-flammable.   

C. Because plas is not harmful to the environment.   

D. Because burning plas releases harmful smoke.

Question 10. Why don’t we burn plas trash?10 điểm   A. Because we do not have enough fuel.   B. Because plas is non-flammable.   C. Because plas is not harmful to the environment.   d. Because burning plas releases harmful smoke.

d nha bạn

Question 10. Fiber in some kinds of food is necessary for the digestive system to work normally. We need to eat enough food rich in fiber. The kinds of food rich in fiber are ……10 điểm   

A. rice and corn.   

B. eggs and milk.   

C. fruits and vegetables.   

D. meat and fish.

A nhé bn

Question 6. Which of the following is NOT a mixture?10 điểm  

( A). Pure water   B. Salt water   C. Muddy water   D. Tap water

trả lời :

A. Pure water   

B. Salt water 

  C. Muddy water   D. Tap water

^HT^

Question 7. What are the alloys of iron?10 điểm   

A. Aluminum and copper   

B. Cast iron and steel   

C. Lead and aluminum   

D. Steel and copper

trả lời :

B. Cast iron and steel

HOCTOT