Question

1. scientists make a lot of experiments.
2. my mother uses butter to prepare cakes.
3. there are a lot of windows in our classroom.
4. we need some glue to make our project.
5. the waiters are really nice.
6. my father drinks two big glasses of water.
7. the bread is still warm.
8. i bought three bottles of water.
9. may i have some juice please!
10. the exercises are easy.
11. when im thirsty i must drink a lot of water.
12. they were a lot of people at the beach.

Explanation:

Identify target nouns

We need to classify the underlined nouns in each sentence as either countable or uncountable.

• Sentence 4: "experiments"
• Sentence 5: "butter"
• Sentence 6: "windows"
• Sentence 7: "glue"
• Sentence 8: "waiters"
• Sentence 9: "glasses"
• Sentence 10: "bread"
• Sentence 11: "bottles"
• Sentence 12: "juice"
• Sentence 13: "exercises"
• Sentence 14: "water"
• Sentence 15: "people"

Apply noun classification rules

Using the Countable Nouns and Uncountable Nouns knowledge points:

• experiments: Plural form of "experiment". It can be counted individually. (Countable)
• butter: A mass noun representing a substance. It cannot be counted individually without units. (Uncountable)
• windows: Plural form of "window". They can be counted individually. (Countable)
• glue: A liquid/sticky substance. It is a mass noun. (Uncountable)
• waiters: Plural form of "waiter". People can be counted. (Countable)
• glasses: Plural form of "glass" (containers). They can be counted individually. (Countable)
• bread: Food substance considered as a mass. (Uncountable)
• bottles: Plural form of "bottle". They can be counted. (Countable)
• juice: Liquid substance. (Uncountable)
• exercises: Plural form of "exercise". They can be counted individually. (Countable)
• water: Liquid substance. (Uncountable)
• people: Plural countable noun (plural of person). (Countable)

Answer:

No.	Answer
5	Uncountable
6	Countable
7	Uncountable
8	Countable
9	Countable
10	Uncountable
11	Countable
12	Uncountable
13	Countable
14	Uncountable
15	Countable