Scientific Procedure
What is the first step in the scientific procedure?
Choose a question or problem
What should be worn at ALL times in the Lab?
Safety Gloves or safety goggles
Which of these should not be disposed of in the sink?
a. lemon juice
b. colored water
c. sand
d. baking soda dissolved in water
sand
the series of steps for scientists to follow in order to understand how things work, and why they work the way they do is known as the
Scientific Method
Type of observation that tells us how many, how much or how often. This data uses numbers to describe data.
Quantitative Observation
Step in the scientific method where scientists answer the question that the experiment asked. Look at your data and decide what it tells you about your hypothesis. Summarize your data.
Conclusion
What does the flame symbol represent?
Hot Objects
True or False: You can eat food in the lab if all tables are wiped down before hand
False
the variable in an experiment that is deliberately changed on purpose
Independent Variable
Type of observation that helps us understand why, how or what happened. This data uses non numerical data and cannot be measured
Qualitative
What step in the scientific method is the actual step where scientists design, carry out tests, or trials that will help determine if their hypothesis was supported or not
Experiment
If you spill something in the lab, what is the first thing you need to do?
Let the teacher know immediately
Which of the following is acceptable lab behavior?
a. leaning across the lab table
b. using a dustpan to clean broken glass
c. eating snacks in the lab
d. directly smelling a chemical mixture
using a dustpan to clean broken glass
The variable in an experiment that is the result of the changed variable.
Dependent Variable
Observations and data that is collected throughout the experiment is known as the
Results
What is the 3rd step in the scientific procedure
Form a hypothesis
What is the correct way to check to odor of a substance in the lab?
Use your hands to wave / waft the scent towards your nose.
Students with long hair and jewelry should do what in the lab?
Students should pull their hair back and take off any jewelry before entering the lab.
Which variable always stays the same in an experiment and why?
Control- something needs to stay constant so that the only way the dependent variable is changed is directly a result from the independent variable
Which is an example of a controlled variable?
A. Amount of sunlight
B. Plant height
C. Type of fertilizer
D. Color of flowers
amount of sunlight
After forming a hypothesis and before starting the experiment you need to do what to ensure you have all of your items for the experiment and follow the correct steps?
Gather Materials and Write a procedure
What is the number 1 priority in the science lab?
Safety
What is one example of a time a student may need to use the eyewash station?
Chemical in the eyes
other answers may be accepted
Why is it important to follow the steps in the correct order for the scientific procedure?
This ensures all steps are being taken in the correct order and nothing is forgotten.
Why is it important to change only one variable at a time?
A. To make the experiment longer
B. To keep the test fair
C. To confuse students
D. To avoid cleaning
To keep the test fair