Introduction to Science Background Information

Observation

Examples

Inference

The color of the classroom is blue. Inference Observation

The rock was formed while underwater. Inference Observation

The planet earth is flat. Inference Observation

The temperature on Friday was 20.7oC Inference Observation

Measurement

Metric vs English units Unit Metric English Time Length Mass Volume

Some measurements need a combination of units Volume Density Pressure Rate

Rounding Rules > 5 round up > 5 round down

Round to the nearest hundredth place 4.567 mL 17.256 cm3 0.115002 g 2,594 km

Scientific Notation

You Try… 36.4 0.00000591 95,321.2 0.259

Which number is smaller? 48,532,221,795,561.548 98,241,542,001.259542113

Density

What happens to density if the mass stays the same but volume increases?

Plug is some numbers to find out.

Graphs

Direct Relationship

Indirect Relationship

Cyclic Relationship

No Relationship

Formal Graph

Sketching a graph