sandblaster experiment

SANDBLASTER EXPERIMENT

Safety

- Do not throw the sand - Do not swing the timers around (if strings are

present) - Remember to close the lids on the

sandblasters - Be careful to not inhale the sand

Directions

Assigned Tasks- Materials Manager is in charge of pouring the

sand through-out the experiment. The next three team members will each have

their own straw.-Your task will be blowing the sand.

The fifth member will be the time keeper (stopwatch). If you d o no t have a fifth member, the Materials Manager will be the time keeper.

1. Pour four scoops of sand in the middle of the sandblaster Your bifold has these instructions listed.

2. Record your “before”(Part A) picture then close the lid

Straw

Part A (Before):

4. For 30 seconds, blo w g e ntly towards the sand. 3. The first person to the right of the Materials

Manager will insert their straw into the hole of the sandblaster. ( Time Keeper! Remember to keep track of time.)

5. After 30 seconds, remove the lid and record your observations in Part B.

6. Once you’re done recording, pour the sand back into the cup. Try to not spill!

7. Pour four new scoops of sand into the middle. Close lid.

8. Blow harder (but not too hard!) for 30 seconds. This time, the next team member will use their

new straw to blow harder.

9. After 30 seconds, remove the lid and record your observations in Part C. Part C ( After 30 seconds, blowing harder )

Straw

Step 10

Without taking the sand out from Part C, dump ALL of the sand from the cup into the middle.

Close lid. Use a new straw ( next team member ). This time, blow as hard as you can!! For 30

seconds. Record in Part D.