2 ADIL Revision Part 2

Let's experiment! We are going to make lava in a glass. You need a clear drinking glass, some vegetables oil, a teaspoon of salt, (many) water and some food colouring.

Answer explanation

many is used for countable and plural nouns

Choose any colour you like. (While) you like bright colours, you may use red or yellow. Now, the experiment starts.

Answer explanation

'While' is used to show two actions that are happening at the same time. We use 'if' to introduce a possible condition.

First, fill in the glass with water. Then add about five drops (for) food colouring.

Answer explanation

"For" is a preposition used to indicate purpose.

"Of" is used for something that belongs to or relates to something else or to reference something.

Next, pour the vegetable oil into the glass of coloured water (slow).

Answer explanation

A suffix is a letter or group of letters, for example -ly' or -ness,' which is added to the end of a word in order to form a different word, often of a different word class. For example, the suffix -ly' is added to quick' to form `quickly.

You will notice something. The oil floats on top of the water because it is (light) than the water.

Answer explanation

clue : "than"

If we want to compare something, we usually add -er.

Now the fun (begin)! Observe carefully.

Answer explanation

Add an “s” to the verb if the subject is third-person singular (he, she, it, Martha, Sam, etc.).

You will see blobs of lava moving up and down the glass. If you want more fun, keep (added) salt to keep the effect going.

Answer explanation

clue : "keep"

We use present continuous tense, we add -ing to the verb. The present continuous verb tense indicates that an action or condition is happening now, frequently, and may continue into the future.

You can add different colours to (got) colourful lava. To have more fun, do the experiment with a group of friends! Happy experimenting!

Answer explanation

Usually, we use the root word after "to".