1. MOST COMMON ON TAKS TEST

2. -Tie back long hair
-Do not wear loose sleeves (they tend to get in the way)
-Do not wear open shoes
-Wear lab aprons and safety goggles
-Use tongs when handling hot glassware
-Do not touch or taste any chemical (unless specifically instructed to do so)
-To smell something, hold it away from your nose and wave your hand over it towards your nose
-When heating anything in a test tube, point the mouth of the test tube towards the wall
-When mixing acids and water, pour the acid into the water

3. MENISCUS – the curved shape that forms when water is placed in a glass or plastic container
*to get accurate results : always measure the volume from the bottom of the meniscus

4. Mixing, transporting, and reacting

5. Finding a measured volume of solution

6. GREATER ACCURACY
Volumetric Flask
Pipet
Buret

7. Mass – the amount of matter in an object
Balance

8. Temperature – measure of amount of heat

9. -Observation -Hypothesis -Experiment -Model (Theory)
Scientific Method – a systematic procedure for solving problems and exploring natural phenomena
-Observation
-Hypothesis
-Experiment
-Model (Theory)
-Further Experiment

10. OBSERVATION
…. ????
-lead to a question regarding event or characteristic

11. Hypothesis…. Prediction (if, then)
-an answer to the question formed during observation

12. Experimentation -Steps taken to prove or disprove a hypothesis
Experiment to test hypothesis

13. Data Quantitative data Qualitative data
-obtained by making a measurement
Qualitative data
-descriptive data

14. Accuracy/Precision Accuracy Precision
-how close a measurement is to the accepted/actual value
Precision
-indicates how close together or how repeatable the results are