Significant Figures
Scientific Notation
KHDbdcm
Dimensional Analysis
Density
100

The number of significant figures in 123.

What is 3?

100

6.77 x 101 written in standard notation would be this number.

What is 67.7?

100

10 g = ______ mg

What is 10000 mg?

100

Solve: 45 days x 1 week

                                  7 days

What is 45/7 or 6.43 weeks?

100

When drawing the density triangle, this letter goes on top.

What is m (or mass)?

200

The number of significant figures in 0.0045

What is 2?

200

8.90 x 10-3 could be taken out of scientific notation by moving the decimal this many places in this direction. 

What is 3 places to the left?

200

The number of mL in 800 cm3.

What is 800?
200

True or false: conversion factors can be flipped in either direction depending on your starting unit.

What is true?
200

Substance A = 0.70 g/mL

Substance B = 0.65 g/mL

Substance C = 1.2 g/mL

A density column is filled with A, B, and C. The three substances separate. This is what the column looks like.

What is

B (least dense)

A

C (most dense)

300

The type of zero that is never significant.

What is leading zero?

300

The number 430, written in scientific notation, would have this exponent.

What is +2?

300

35 DL = __________ dL

What is 3500?

300

This is where you unit you are looking for goes.

Where is on top of the conversion factor?

300
Mass = 10 g

Density = 20 g/mL

This is the volume.

What is 0.5 mL?

400

Trailing zeros are significant if...

there is a decimal present.

400

0.00035 would be written as this in scientific notation.

What is 3.5 x 10-4?

400

0.5 cm = ___Hm

What is 0.00005 Hm?

400

This should always be the first thing you write on your paper. (2 things)

What is the number and unit you are given?

400

Mass = 30 g

Cube measures 2.0 cm x 2.0 cm x 2.0 cm

This is the density.

What is 3.75 g/cm3?

500

The number of significant figures in 0.2020

What is 4?
500

This is where the decimal goes when writing a number in scientific notation.

Where is after the first nonzero number?

500

The temperature 45oC converted to Kelvin.

What is 318? 

500

1 foot = 12 inches

This is the SETUP for how you would convert 100 inches into feet.

100 in x  1 foot

            12 inches

500

This is how to find the volume of an irregular solid using water displacement. (step by step)

1. Fill a grad. cyl. partway with water. 

2. Note initial volume

3. Add substance

4. Note final volume

5. Object's volume = final - initial

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