1. ACT Prep Passage 1 – Ecological Succession Begin when the bell rings
WARM UP
ACT Prep
Passage 1 – Ecological Succession
Begin when the bell rings

2. The Big Bang Theory

3. Metric Prefix Conversions

4. The Metric Steps
Kilo- BASE UNIT Deci- Centi- Milli- Micro- Nano-

5. Prefix Values Prefix Conversion Nano- 1000 n__ = 1 µ__ Micro-
Milli-
1000 m__ = 1 ____
Centi-
100 c__ = 1 ____
Deci-
10 d__ = 1 ____
BASE UNIT (g, L, m, etc.)
Kilo-
1 k__ = 1000 ___

6. Converting Between Prefixes
Factor-Label Method
Use prefixes as conversion factors
3.75 meters x 1 kilometer
meters
Convert prefixes in steps
To convert km into nm
km to m, m to mm, mm to µm, µm to nm

7. WRAP UP Which is larger: 211 mm or 41.4 cm? Convert… 3.2 ng into g
275 km into cm