Lab Safety
Which of the following is not okay to do in a lab?
a) Taste somethings after your teacher tells you it's okay to taste
b) Wait to tie your hair back until class is almost over.
c) Wear lab safety gear when the teacher tells you to
b) Wait to tie your hair back until class is almost over.
Inches and a ruler are used to measure what?
Length
What are the three bases used in the metric system?
Meters, Liters, and Grams
Which of these is a fact, NOT an opinion:
Observation, Inference, Prediction
Observation
Where is the metric system used and where is one place it is not used?
It is used almost everywhere around the world, but it is not used in the United States.
What is the rule about shoes?
You must wear close-toad shoes at all time.
Pounds and a spring scale are used to measure what?
Mass (or Weight)
What are the 7 words/prefixes that the following statement represents:
King Henry Died By Drinking Chocolate Milk
Kilo, Hecto, Deka, [Base], Deci, Centi, Milli
What part of this paragraph is a qualitative observation?
I walked outside and noticed 10 trees with brightly colored leaves. The closest tree to me was a few meters away from me.
The tree has brightly colored leaves.
Volume
What do you do if an accident happens?
Tell the teacher and make sure they are the ones to pick it up.
State one reason why measurement matters?
Must say one of these:
- For guidelines
- For accuracy
- For data
- For research
State the approximate size (benchmark) of a kilometer, meter, centimeter, or millimeter.
Kilometer - ten football fields
Meter - door handle from the floor
Centimeter - width of little finger
Millimeter - thickness of a dime
Is this an observation, inference, or prediction?
I think that the monkey will fall into the water.
Prediction - because it is a statement about an event that you think will happen in the future
State the approximate size (benchmark) of a kiloliter, liter, or milliliter.
Kiloliter - The capacity of two large refrigerators
Liter - The capacity of a large water bottle
Milliliter - The liquid in one eyedropper
Ms. Burgess - Pull up the picture!
Which student is using a better technique and why?
Evelyn because she is not drinking it / putting it in her mouth.
A beaker and a graduated cylinder are used to measure what?
Volume
27 mL = _____ L
0.027 L
That women I don't know must be the mom of the two little kids she is standing by.
Inference - making a guess based on seeing a women stand by two kids
The amount of space something takes up (1) and the amount of matter in something (2) are the definitions for which two types of measurement?
Must correctly state both (1) and (2).
(1) volume
(2) mass
State the two lab safety rules being broken in this scenario:
Max is conducting a lab in class that involves chemicals. After he takes a swig of his drink, he begins to laugh at the rest of his classmates. They look so funny in those stupid goggles and aprons! “I am not going to put those things on,” he thinks to himself.
Max is drinking - there is no eating or drinking in the lab
Max isn't wearing googles and aprons - safety gear like this is required in a lab
The average kinetic energy in something is the definition for which type of measurement?
Temperature
9.1 m = ______ cm
910 cm
Which one, two, or three of these are based on opinions and biases, NOT facts?
Observation, Inference, Prediction
Inferences and Predictions
7.01 kg = _____ g
7010 g