ARROWS REVIEW 9/12

How many significant figures does the following number have?
0.00345

• 6
• 5
• 3
• Ambiguous: 3,4,5, or 6

How many significant figures does the following number have: 100.00210

• 7
• 8
• 10
• Ambiguous: 7 or 8

Solve and give your answer with the correct number of significant figures
24.28 + 12.5

• 3.687 x 10¹
• 36.8
• 37
• 3.70x10¹

Solve and give your answer with the correct number of significant figures
1421-34

• 1.39x10³
• 1387
• 1390
• 1400

This bullseye demonstrates...

• High Accuracy & High Precision
• High Accuracy & Low Precision
• Low Accuracy & High Precision
• Low Accuracy & Low Precision

The attendance for the basketball game was estimated to be 15,000 people but 12,500 people attended. What was the percent error?

• 16.67%
• 20%
• 2500%
• 80%

What method would you use to separate a mixture of salt and water so that you can get keep the salt AND the water?

• sorting by hand

• distillation

• chromatography

Name the separation technique

• Chromatography

• Filtration

• Distillation

• Evaporation

Which separation technique is used to obtain pure water from seawater?

• Simple distillation

• Filtration

• Chromatography

• Evaporation

If you spilled nails in a sandbox, what separation tool/method could you use to clean out the sandbox so it would be safe for children to play in?

• Filter
• Screen
• Magnet
• Evaporation