2. Created by Terri Street Copyright, 2000

3.  1,000,0001,000,000  500,000500,000  250,000250,000  125,000125,000  64,00064,000  32,00032,000  16,00016,000  8,0008,000  4,0004,000  2,0002,000  1,0001,000  500500  300300  200200  100100

4. Click to return to question, Cont-P to switch to the pen, cross out two incorrect answers, then Cont-A to switch back to pointer.

5. Click to return to the question and poll the class

6. Click on link to Ask Jeeves, or click on this oval to return to question and ask a friend

7.  B. Melting B. Melting  C. A solid dispersing into C. A solid dispersing into  a liquid a liquid  A. Disappearing A. Disappearing  D. Separating a solid from a liquid D. Separating a solid from a liquid How would you define dissolving?

8. Back to Board  C. Dispersing a solid into a liquid

9.  C. Saturated C. Saturated  A. Mixture A. Mixture  B. Solution B. Solution  D. Evaporation D. Evaporation A bowl of cereal with milk is an example of…

10. Back to Board A. Mixture

11.  A. Filtering A. Filtering  C. Screening C. Screening  B. Evaporation B. Evaporation  D. Dissolving D. Dissolving What is the method used for separating a solution?

12. Back to Board B. Evaporation

13.  D. Saturated D. Saturated  C. Evaporated C. Evaporated  B. Concentrated B. Concentrated  A. Diluted A. Diluted A liquid that can hold NO MORE material is considered…

14. Back to Board D. Saturated

15.  A. heat A. heat  C. precipitate C. precipitate  D. gas formation D. gas formation  B. dissolving B. dissolving All of the following are examples of a chemical reaction except…

16. Back to Board B. Dissolving

17.  A. 1 scoop of Kool-Aid and 500 mL of water A. 1 scoop of Kool-Aid and 500 mL of water  C. two scoops of Kool-Aid and 500 mL of water C. two scoops of Kool-Aid and 500 mL of water  B. 1 Scoop of Kool-Aid and 1000 mL of water B. 1 Scoop of Kool-Aid and 1000 mL of water  D. 2 scoops of Kool-Aid and 1000 mL of water D. 2 scoops of Kool-Aid and 1000 mL of water Which of these solutions has the highest concentration?

18. Back to Board C. 2 scoops of Kool-Aid and 500 mL of water

19.  A. About 210 g A. About 210 g  B. Exactly 170 g B. Exactly 170 g  C. Exactly 230 g C. Exactly 230 g  D. Same-200 g D. Same-200 g If a glass of unsweetened lemonade weighs 200 g and 30 grams of sugar are added, what will be the new weight?

20. Back to Board C. 230 grams

21.  C. Baking Soda C. Baking Soda  A. Citric Acid A. Citric Acid  B. Salt B. Salt  D. Calcium Chloride D. Calcium Chloride Which of these materials is the most soluble?

22. Back to Board A. Citric Acid

23.  A. Mixture A. Mixture  C. Solution C. Solution Which is a special mixture formed when a solid material dissolves into a liquid?  D. Concentration D. Concentration  B. Crystal B. Crystal

24. Back to Board C. Solution

25. How can you make a stronger solution?  A. Heat up the liquid A. Heat up the liquid  C. Cool down the liquid C. Cool down the liquid  B. Add more water B. Add more water  D. Add more powder D. Add more powder

26. Back to Board D. Add more powder

27.  A. screen filter A. screen filter What is the best way to separate gravel from water?  C. evaporation C. evaporation  B. Pick out with hands B. Pick out with hands  D. burning D. burning

28. Back to Board A. Screen filter

29.  C. salt crystals C. salt crystals After a sodium chloride and water solution evaporates, what is left behind?  A. nothing A. nothing  B. white chalky precipitate B. white chalky precipitate  D. hydrogen atoms D. hydrogen atoms

30. Back to Board C. Salt Crystals

31.  C. Gas causes bag to expand C. Gas causes bag to expand When a chemical reaction occurs in a closed bag, what is the result?  A. All air is sucked out of bag A. All air is sucked out of bag  B. Crystals form B. Crystals form  D. Bag becomes very hot D. Bag becomes very hot

32. Back to Board C. Gas causes bag to expand

33.  C. It rises C. It rises What happens to the water level of a solution when a solid is dissolved into it?  A. It falls A. It falls  D. Solids don’t dissolve into liquids D. Solids don’t dissolve into liquids  B. It stays the same B. It stays the same

34. Back to Board C. It rises

35.  B. Fizzing, white bubbles, chalk forms B. Fizzing, white bubbles, chalk forms What happens when baking soda and calcium chloride are combined in water?  A. No chemical reaction occurs A. No chemical reaction occurs  D. clear bubbles but no chalk D. clear bubbles but no chalk  C. Feels colder but no fizz C. Feels colder but no fizz

36. B. Fizzing, white bubbles, chalk forms

37. Sorry, try again!

38. Thanks for playing!