2. an interaction of one or more of our (5) senses--sight, smell, hear, touch, or taste, within our surroundings or environment. Flash back….Last year question!!!!

3. Look at those!!!!

4. the interpretation of one or more observations. reaching conclusions proposing explanations Flash back….Last year question!!!!

6. an inference based on observations. Ex: Weather forecasts are predictions based on past and present conditions

8. Measurement: is a means of describing observations using numbers.

10. What is this instrument called, what does it measure, and what are the basic units??? Flash back….Last year question!!!!

11. What is this instrument called, what does it measure, and what are the basic units??? Flash back….Last year question!!!!

13. What is this instrument called, what does it measure, and what are the basic units??? Flash back….Last year question!!!!

15. (second, minute, hour, day, year...) is the moment at which something happens or the duration during which a change occurs.

19. Percent Error = Measured Value - Accepted Value Accepted Value × 100%

20. 1) Write the formula 2) Substitute values into the equation 3) Show correct answer with units

21. Megan measured a line to be 32 cm. long. The accepted value is 30 cm. What was Megan’s % deviation?

22. If the number is less than 1, the exponent is negative If the number is greater than 1, the exponent is positive You count places to move the decimal point so that there is one number to the left of the decimal point. The number of places you moved the decimal point equals the exponent

23. 3 45,000,0003.45 × 10 9 0.00093489.348 × 10 -4

24. Scientific Notation Examples 99.343 4000.1 0.000375 0.0234 94577.1 9.9343 x 10 1 4.0001 x 10 3 3.75 x 10 -4 2.34 x 10 -2 9.45771 x 10 4 Place the following numbers in scientific notation:

25. Going to Ordinary Notation Examples 3 x 10 6 6.26x 10 9 5 x 10 -4 8.45 x 10 -7 2.25 x 10 3 3000000 6260000000 0.0005 0.000000845 2250 Place the following numbers in ordinary notation: