🔁 Grammar: Conditional Type 0 & Type 1
1ère Bac Sciences Expérimentales SEx
📌 Introduction
We use Conditional Type 0 for scientific facts and habits, and Conditional Type 1 for real future possibilities.
Type 0: If you heat ice, it melts. (Always true)
Type 1: If it rains, we will stay home. (Possible future)
🟢 Conditional Type 0 (General Truths)
Use: Scientific facts, natural laws, habits
- If you heat water, it boils.
- If plants don’t get light, they die.
- If you don’t sleep, you feel tired.
Science Fact: “If you mix acid and base, they react.”
🟡 Conditional Type 1 (Real Future)
Use: Possible future situations, promises, warnings
- If it rains, we will stay home.
- If you study, you will pass the exam.
- If the experiment works, we will present it.
School Context: “If you finish your homework, you will get a good grade.”
✅ Exercise 1: Identify Type 0 or Type 1
1. If you freeze water, it becomes ice. →
2. If she arrives late, she will miss the test. →
3. If you don’t sleep, you feel tired. →
4. If we win the science fair, we will celebrate. →
5. If you mix red and yellow, you get orange. →
✅ Exercise 2: Complete Type 0
1. If you cool water, it ___ .
2. If plants get sunlight, they ___ .
3. If you don’t eat, you ___ hungry.
4. If you touch fire, you ___ burned.
5. If you mix acid and base, they ___ .
✅ Exercise 3: Complete Type 1
1. If it snows, we ___ stay home.
2. If you study, you ___ pass.
3. If the experiment works, we ___ present it.
4. If you help me, I ___ finish on time.
5. If she arrives late, she ___ miss the test.
✅ Exercise 4: Match the Clause
1. If you heat ice →
2. If it rains tomorrow →
3. If you don’t water plants →
4. If you study tonight →
5. If you mix vinegar and baking soda →
✅ Exercise 5: Science Context (Type 0)
1. If you cool steam, it ___ .
2. If you add salt to water, it ___ faster.
3. If you don’t breathe, you ___ .
4. If you heat metal, it ___ .
5. If you plant seeds, they ___ .
✅ Exercise 6: School Context (Type 1)
1. If you don’t do homework, you ___ in trouble.
2. If you arrive late, you ___ the test.
3. If you fail, you ___ repeat the year.
4. If you don’t study, you ___ pass.
5. If you help me, I ___ finish early.
✅ Exercise 7: Correct the Mistake
1. If you heat water, it will boil. →
2. If it rains, we stay home. →
3. If you don’t sleep, you will be tired. →
4. If she studies, she passes. →
5. If you mix colors, they will change. →
✅ Exercise 8: Fill in the Blank
1. If you freeze water, it ___ ice.
2. If the sun rises, it ___ light.
3. If you don’t eat, you ___ hungry.
4. If you press the button, the light ___ on.
5. If you study, you ___ a good grade.
✅ Exercise 9: Choose the Correct Conditional
1. If you heat metal, it expands. →
2. If you heat metal, it will expand. →
3. If I see him, I tell him. →
4. If I see him, I will tell him. →
5. If you don’t breathe, you die. →
✅ Exercise 10: Write a Sentence
Write correct conditional sentences:
1. Type 0 (fact):
2. Type 1 (future):
3. Type 0 (science):
4. Type 1 (school):
5. Type 1 (promise):
