1. 1st Quarter Test Review

2. Observation
Observation
Using your 5 senses
Two types

3. Qualitative Deals with descriptions.
Data can be observed but not measured.
Colors, textures, smells, tastes, appearance, beauty, etc.
Qualitative → Quality

4. Quantitative Deals with numbers. Data which can be measured.
Length, height, area, volume, weight, speed, time, temperature, humidity, sound levels, cost, members, ages, etc.
Quantitative → Quantity 

5. Inference
a conclusion drawn from your observations

6. How many jumps does it take?
Ladder Method 1 2 3
KILO 1000 Units
HECTO 100 Units
DEKA 10 Units
DECI 0.1 Unit
Meters Liters Grams
CENTI 0.01 Unit
MILLI Unit
How do you use the “ladder” method?
1st – Determine your starting point.
2nd – Count the “jumps” to your ending point.
3rd – Move the decimal the same number of jumps in the same direction.
4 km = _________ m
Starting Point
Ending Point
How many jumps does it take? 4. 1
__. 2
__. 3
__.
= 4000 m

7. Metric Conversions Practice
10.56 km=_____________ cm
35.6 cm=______________ mm
67.89 mm= ____________m
25.6 g=________________ mg

8. Density Formula Density= Mass/volume
If you cut an object in half what happens to it’s density?
Problem: Find the density of an object with a mass of 10 grams and a volume of 2 centimeters cubed.

9. Quickly Heather Eats Ice Cream
Scientific Method
Scientific Method
Question
Hypothesis
Experiment
Interpret Data
Conclusion
Quickly Heather Eats Ice Cream

10. Independent Variable
The independent, or manipulated variable, is a factor that’s intentionally varied by the experimenter.

11. Dependent Variable
The dependent, or responding variable, is the factor that may change as a result of changes made in the independent variable. .

12. Control Group
In a scientific experiment, the control is the group that serves as the standard of comparison.
The control group may be a “no treatment" or an “experimenter selected” group.

13. Constants
The constants in an experiment are all the factors that the experimenter attempts to keep the same.

14. States of Matter The Four States of Matter
The Classification and Properties of Matter Depend Upon Microscopic Structure
Particle arrangement
Particle energy
Particle to particle distance
The different states of matter are categorized by the arrangement and energy of the particles at normal temperatures and pressures. The state of matter can be altered by adding or removing energy and/or pressure which can affect the arrangement and energy of the particles.
Chumbler - Properties of Matter

15. Kinetic Molecular Theory
All matter is moving
Atoms are the smallest parts of matter
Absolute zero is

16. Melting and Freezing of water
To change from a solid to a liquid you must add energy in the form of calories.
80 calories are neede to change ice to liquid water
The temperature stays constant at 32 Fahrenheit or 0 celsius

17. Liquid to a gas
Vaporization and boiling are the result of more heat in calories.
540 calories are needed to go from a liquid to a gas
Evaporation is the change from liquid to a gas

18. Sublimation Some elements go directly from a solid to a gas
Example is dry ice which is solid carbon dioxide

19. Vocabulary Melting-solid turns to a liquid
Freezing-liquid turns into a solid
Vaporization-the conversion of water into steam/gas
Boiling-liquid turns into a gas
Evaporation-to convert or change into a vapor or gas
Condensation-a gas loses heat/energy and changes into a liquid
Sublimation-solid goes directly to a gas