Surprise others with this great trick!

This is a fun science trick that you can show your family and friends. All you need is

some water, a bowl, some pepper, and some liquid soap (the type used to wash dishes).

Here is what to do:

1. Put some water in the bowl.

2. Put some pepper in the bowl. The pepper will float on top of the water. It

does not fall to the bottom of the bowl. Use enough pepper to cover the

water.

3. Place the tip of your finger in the water. Nothing happens.

4. Now, put a bit of liquid soap on your finger.

5. Place the tip of your finger in the water again. This time, the pepper should

move quickly to the sides of the bowl. It looks like the pepper is afraid of the

soap!

Try again!

What happens if you try using other materials, such as milk or lemon juice? Find out!

Start with a new bowl, and put some water and pepper in it, just like you did before.

Now, put some lemon juice on your finger. When you place your finger in the water, the

pepper should not move. Try again with milk. The pepper should stay where it is again.

The trick only works with soap!

18. What do you put in the bowl first?

(A) Pepper

(B) Water

(C) Soap

19. What happens when you touch the water with soap on your finger?

(A) Nothing happens to the pepper.

(B) The pepper falls to the bottom of the bowl.

(C) The pepper moves to the sides of the bowl.

20. What happens when you do not use soap?

(A) Nothing happens to the pepper.

(B) The pepper falls to the bottom of the bowl.

(C) The pepper moves to the sides of the bowl.

8. Where can you go to buy plant food?

(A) The playground

(B) A classroom

(C) A garden

9. You can buy both flowers and _____.

(A) seeds

(B) vegetables

(C) flower pictures

10. Where is the flower sale?

(A) In a garden

(B) At a school

(C) At someone’s home

11. When is the flower sale?

(A) On a weekend

(B) In the winter

(C) During a holiday

2. You borrowed a book from the library. You think it is on your table. You want to

read it, but it is not there.

The book is _____.

(A) owned

(B) bought

(C) lost

3. Seasons do this. Leaves do this. People do this when they put on different clothes.

They _____.

(A) end

(B) change

(C) fall

4. There are many things to drink in your kitchen. For example, you can drink some

juice. Or, you can drink some water instead.

You have a _____.

(A) friend

(B) choice

(C) gift

5. This word describes some colors. People use this word to talk about the light from

the sun. This word can also describe a smart person.

(A) clear

(B) bright

(C) clever

6. You have four pieces of candy. You want to share the candy with three friends. You

give one piece of candy to each friend. Now, everyone has the same amount of

candy.

You are being _____.

(A) proud

(B) fair

(C) difficult

7. You are waiting in line at the water fountain. Your friend is in front of you. She tells

you to drink first.

She tells you to________.

(A) go ahead

(B) calm down

(C) pick out

IX. Rewrite the following sentence in such another way which has the same meaning with the first sentence.

46. Do you like playing football?  

       Are you ___________________________________________________?

47. Our house is older than any other house in the living center.

        Our house _________________________________________________

48. We have a two - month summer vacation.

        Our summer vacation lasts ____________________________________

49. Please tell me something about your neighborhood?

        Can you __________________________________________________?

50. What is the length of the Great Wall?

        How _____________________________________________________?

Bài 5: Điền some/any/an vào chỗ trống

1. There are _______ people in the streeet.

2. There is _______ cinema on the right.

3. There isn’t _______ dishwashers in the country house.

4. There aren’t _______ rivers running through the town centre.

5. There is _______ bar called Moe’s.

6. There are _______ chests of drawers in our apartment.

7. Is there _______ chocolate in the kitchen?

8. There’s _______ airport next to the city.

9. Are there _______ tourists in this villa?

10. Is there _______ office near here?

Ai nhanh hứa tick! Cảm ơn!

cơ hội kiếm điểm

VI. The sentences below have four underlined words or phrases A, B , C or D. Identify an error in each sentence and correct it.

26. They listened (A) to me careful (B) but they didn’t (C) let me go (D) with them

27. When I was having (A) dinner, one friend (B) of mine was coming (C) to see me (D).

28. My parents always think (A) that I am not enough old (B) to ride to (C) school alone (D).

29. How do (A) you go to see (B) the dentist? Once (C) or twice a month (D).

30. How long (A) are (B) you going (C) to staying (D) in Vietnam?  

Bài 4: Mỗi câu dưới đây có một lỗi sai, tìm và sửa lỗi sai sau đó viết lại câu cho đúng

1. There isn’t some water in the glass. _____________________________________________

2. There are a three children talking with the teacher. _________________________________

3. Are there some airconditioner in the attic? ________________________________________

4.Is there any windows in this classroom? _________________________________________

5.There aren’t some pencils in the pencil case. ______________________________________

6. There is some people in the backyard. ___________________________________________

7. There are any pictures on the wall. _____________________________________________

8. Is there some boy in the living room? ___________________________________________

9.There are any magazines on the table. ___________________________________________

10. There are a biscuit on the plate. _______________________________________________

Ai nhanh hứa tick! Cảm ơn mn nhìu lém!

Bài 4: Mỗi câu dưới đây có một lỗi sai, tìm và sửa lỗi sai sau đó viết lại câu cho đúng

1. There isn’t some water in the glass. _____________________________________________

2. There are a three children talking with the teacher. _________________________________

3. Are there some airconditioner in the attic? ________________________________________

4.Is there any windows in this classroom? _________________________________________

5.There aren’t some pencils in the pencil case. ______________________________________

6. There is some people in the backyard. ___________________________________________

7. There are any pictures on the wall. _____________________________________________

8. Is there some boy in the living room? ___________________________________________

9.There are any magazines on the table. ___________________________________________

10. There are a biscuit on the plate. _______________________________________________

Ai nhanh hứa tick! Cảm ơn mn nhìu lém!