Scientific Method and Lab Safety

PHPDAC stands for

• Please help people determine all conclusions
• problem, hypothesis, procedure, data, analysis, conclusion
• procedure, hypothesis, problem, data, analysis, conclusion

Select the quantitative measurement

• There is water and vinegar in the beaker.
• There is 5 ml of water in the beaker

A hypothesis is....

• a wild guess
• written in an IF/Then format
• someone's opinion

The __________ variable should be the only variable changed in an experiment

• independent
• dependent
• control

In the pendulum lab, the independent variable that changed the rate the most was the

• mass of the bob
• release point
• length of string

______________ can be recorded in tables, graphs, and charts

• conclusion
• data
• analysis

What is an inference is 

• a list of observations
• an if/then statement
• a conclusion based on observations

The number one concern in the lab is always

• to bring a pencil
• safety
• to clean up after yourself

When working with chemicals, the following protection is needed

• goggles and aprons
• close toed shoes
• goggles, aprons, and closed toed shoes

The scientific method is...

• a way of staying safe in the lab
• the step by step process to investigate a problem
• the difference between a good inference and a bad conclusion