Bonjoour,

Réponse :

1. Scientist works with matter.

2. Matter changes from liquid to solid.

3. Liquids don’t change size.

4. Water freezes into ice.

5. Estevan practices Math every day.

6. Ice cubes melt fast in hot places.

7. Ice cubes don’t melt fast in cold places.

8. Water doesn’t freeze in hot places.

9. The teacher explains the experiment.

10. We don’t practice a lot of experiments in class.

Explications :

Forme affirmative :  ne pas oublier le "s" à la troisième personne.

Forme négative :  don't + base verbale  / doesn't + base verbale