Scientific Method
What is the first step of the scientific method?
Question or observation
What is the main purpose of using a microscope in science?
To view smaller objects and magnify the image.
What is the first thing you should do if a chemical spills on your skin?
Tell a teacher
What is the chemical formula for water?
H20
What is a hypothesis?
A testable prediction. An educated guess.
What type of microscope is commonly used in middle and high school laboratories?
compound light
Name one piece of personal protective equipment (PPE) that should be worn during a science experiment.
Goggles, apron, gloves, closed toe shoes
Why is water referred to as a "universal solvent"?
It can dissolve more substances than any other liquid.
What is the purpose of an experiment?
To test the hypothesis
Describe the function of the objective lens in a microscope.
Magnifies the image. Captures the light.
Why is it important to read the labels on chemical containers before using them?
Make sure it isn't poisonous. To see what safety precautions to take.
Bug being able to walk on the water. What is this property of water?
Surface tension
Define variable.
A factor that can change in an experiment.
How do you properly prepare a slide for viewing under a microscope?
Place a drop of water on a slide. place the specimen in the drop. Place a coverslip on top. Place slide on the stage.
What should you do if you break glass during a lab.
Call the teacher, tell the teacher.
Yes or No - If liquid water freezes is it still the same chemical formula?
Yes
What is the significance of a control group?
It serves as a standard for comparison,.
Explain the importance of the diaphragm in a microscope.
The diaphragm controls the amount of light that passes through the specimen.
What should you do in case of a fire in the laboratory?
Pull the fire blanket out. Get under the shower, stop, drop and roll, push the red button.
True or False - Water is one of the few substances that exist in all three states of matter on Earth’s surface.
True