Observations & Inferences
Say if the following sentence is a qualitative or quantitative observation: "Frankie is very fast for a turtle."
Qualitative.
(It does not have an amount attached to it, so it isn't quantitative.)
What system of measurement do we use in science? (The rest of the world uses it, too!)
The Metric System
You want to find the mass of your shoe. What tool would you use?
Triple Beam Balance
You want to measure the amount of water in your cup. What tool would you use to measure that?
Graduated Cylinder (or beaker)
How many millimeters are in one centimeter?
10 mm
Make a quantitative observation about this room.
(Answers will vary. Must have a number/specific amount.)
You want to measure how long your Chromebook is. What unit would you measure in?
Centimeters (cm)
You are measuring Frankie's mass and find out she is 456....? (What would you label your answer with?)
g
(symbol for grams)
What is the formula for calculating the volume of a rectangular prism (a box shape)?
Length x Width x Height
Measure the line on the board in millimeters.
105 mm
You observe that your dog drools a lot when you open the fridge. Make an inference about this observation.
Ex. The dog wants the food in the fridge. (Answers will vary.)
You want to find the mass of your shoe. What unit of measurement in the metric system would you use?
Look at the picture Miss Richard shows you and read the balance.
412.5 g
Look at the picture Miss Richard shows you and read the volume of the liquid.
53 mL
Always read from the bottom of the curve!
You measure your hand and find it is 15.3 cm long. How many millimeters would that be?
153 mm
Look at the picture Miss Richard shows you. Tell whether it is an observation or inference.
Inference.
You don't know whether he was climbing in the tree or fell in or the goat pushed him. We don't know for sure so it's an educated guess.
You want to find the volume of milk in your milk carton. What unit of measurement would you use?
Dwayne the Rock Johnson flies to the moon. His weight on earth was 207 kg, but on the moon is 89 kg. Has his mass changed?
NO.
Even though he weighs less, he still has the same amount of stuff in him. He weighs less on the moon because there is less gravity on the moon.
What is the definition of volume?
How much space something takes up.
What do you call the curve in liquid in a graduated cylinder?
Meniscus
Look at the picture Miss Richard shows you. Make one observation and one inference about it.
(Answers will vary.)
What are the three base units of measurement in the metric system? (Hint: not milli-, centi-, or kilo-)
Meter, Liter, Gram
What is the definition of mass?
How much matter (stuff) is in something.
Look at the picture Miss Richard shows you. What is the volume of the hammer?
4 mL (or cm3)
It was at 65 mL; after you put in the hammer, it rose 4 mL.
Calculate the volume of the box in the picture Miss Richard shows you. You may use a calculator.
105 cm3