What ’ s the Matter? Young scientists want to know …

1. What’s the Matter? Young scientists want to know… By: Ms. Brown’s Class

2. I discovered that makes a solid: • I could see it. • I could feel it. • I could weigh it. • It doesn’t change shape on its own .

3. Why? • Molecules in solids are very close together. • They hold tight. • Solid matter keeps its shape .

4. I discovered what makes a liquid: • It has no shape of its own. • It takes the shape of its container. • You can’t pick it up. • Why? • Molecules in liquids are not close together. • Liquid matter can move and splash.

5. I discovered what makes a gas: • It is hard to see but you know it is there. • They blow on us. • Sometimes we can smell them. • Gas keeps spreading out. • You can fill container with gas • Air is a mixture of gases Why? • Molecules in gas are very far apart. • Gas has no shape.

6. A team of scientists want to know what happens to solids in liquids?

7. A team of scientists were assembled in Ms. Brown’s 2nd Grade class on Friday, February 18th, 2011. They were going to find out exactly what happens when you put a solid into a liquid. They used several different items for their test which included: • Sugar • Salt • Styrofoam balls • Plastic Cubes • Pennies • Walnuts Water was the liquid they used to put them into….here are their discoveries.

8. Question: What happened to sugar? Answer: It dissolved.

9. Q: What happened to salt? A: It dissolved.

10. Q: What happened to plastic cubes? A: They floated

11. Q: What happened to pennies? A: They sank

12. Mmmmm…sugar water is great!

13. You may be wondering what happened to walnuts? Well, they floated! • **No scientist was hurt doing these demonstrations. These experiments were done in a controlled setting. We definitely encourage you to TRY THESE AT HOME!

14. A team of scientists want to know what happens to liquids in liquids?

15. Another team of scientists were assembled in Ms. Brown’s 2nd Grade class on Friday, February 18th, 2011. They were going to find out exactly what happens when you put a liquid into a liquid. They used several different items for their test which included: • Pepsi • Vanilla Extract • Oil • Salad Dressing • Water Here are their discoveries.

16. Q: What happens when you mix Pepsi with vanilla? A: They mixed and made a new solution.

17. Q: What happens when you mix oil with water? A: They separated

18. Q: What happens when you shake salad dressing up? A: At first it mixed together and then it separated. This is called suspension.

19. **No scientist was hurt doing these demonstrations. • These experiments were done in a controlled setting. • We definitely encourage you to • TRY THESE AT HOME!

20. A team of scientists want to know what happens to gases in liquids?

21. The last team of scientists were assembled in Ms. Brown’s 2nd Grade class on Friday, February 18th, 2011. They were going to find out exactly what happens when you put a gas into a liquid. They used several different items for their test which included: • Straws • Dishwashing liquid • Water • Balloons • Lots of hot air! Here are their discoveries.

22. Q: What happens to gases in solids? • A: Gas changes the shape of the solid.

24. Q: What happens to gases in liquids? A: Gas molecules collide and make a space and create a bubble!