Zero Conditional worksheet

1. 1.
   If you water to 100°C, it boils.a) heatb) will heat
2. 2.
   Plants die if they water.a) won't getb) don't get
3. 3.
   If I eat late, I badly.a) sleepb) would sleep
4. 4.
   If the light red, stop.a) will beb) is
5. 5.
   Ice if you leave it in the sun.a) would meltb) melts

1. 1.
   If you will heat ice, it melts.
2. 2.
   If water boil, it turns to steam.
3. 3.
   If I don't sleep enough, I'm feeling tired.

Write three sentences of your own that use this rule. You can use these phrases.

• if
• when
• whenever
• unless
• as long as

1. 1.a) heat The if-part takes the Present Simple, never will.
2. 2.b) don't get A general truth: Present Simple in both parts.
3. 3.a) sleep A habit that's always true takes the Present Simple.
4. 4.b) is The if-part takes the Present Simple.
5. 5.b) melts A fact that's always true: Present Simple.

1. 1.If you heat ice, it melts. Don't use will in the if-part.
2. 2.If water boils, it turns to steam. With he, she and it, the Present Simple adds -s.
3. 3.If I don't sleep enough, I feel tired. General truths take the Present Simple.

Answers will vary. Check that each sentence follows the rule on page 1, or paste them into Clarigram to have them checked.