CURRICULUM | SCIENCE | TECHNOLOGY | ENGINEERING | MATH
“Sometimes it is the people no one can imagine anything of, who do the things no one can imagine.” - Alan Turing
MEASURING MATTER
DAY 1
WARM-UP (7 MIN)
In your notebook, always include the date, the lesson title, and do the warm-up task associated to that date.
Task: *Complete the Musical Warm-Up: "What is that?"*
WARM-UP DISCUSSION (3 MIN)
*What is the importance of using proper units of measurement?* *How do I use theses measuring devices?*
LAB: *MEASURING MATTER* (15 MIN)
In your notebook, always include the date, the lesson title, and do the warm-up task associated to that date. FOR LABS, IF NO SHEET IS PROVIDED, YOU MUST RECORD STEP TITLES AND YOUR ANSWERS IN YOUR SCIENCE NOTEBOOK
Purpose: To be able to measure matter in a way that is communicable to the rest of the world.
Materials: 10-100mL Graduated Cylinder, Ruler Metric, Small Measurable Box, Tiny Weird Objects To Be Measured, Triple Beam Balance, Coffee Filters, Spring Scale, Two measurable metal weights (50-100 grams). Calculator if Necessary
Procedure:
STEP 1: WEIGHT VS. MASS: The triple beam balance is used to measure mass. The spring scale is used to measure force. In your notebooks, explain why we use the spring scale to measure the weight of an item. Find the mass and the weight of the two metal weights. Draw the objects and record your answers next to the objects in your notebooks.
STEP 2: VOLUME: Pick up the small box. Measure the length, width, and height of the box with the ruler. Volume = Length x Width x Height. Draw the box, calculate the volume, and record the volume of the box in your science notebooks. Units must be in cubic centimeters. Next, take the random weird object I have placed on your table. Notice that you can't exactly measure the Length, Width or Height of the object. This is where we use the graduated cylinder. Fill the graduated cylinder half way up with water. Draw the cylinder with water, and record your initial water level value next to the drawing in your science notebook. Then drop your object into the graduated cylinder. Draw the cylinder with the object in it and record the final water level value next to the drawing in your science notebook. To find the volume of the object you need to subtract the initial value from the final value. 1mL = 1 cubic centimeter!
STEP 3: DENSITY: Density = Mass/Volume. Dry your weird object and find the mass of it using the triple beam balance. Record your object's mass next to your drawing in your science notebook. You now have the volume and the mass of the object. Use the density equation to calculate the object's density.
STEP 4: ALL COMBINED: Mr. Amen has a series of objects to choose from on his desk. Pick one of the objects. Find its mass, volume, weight, density, and make sure you use the correct units for all of it.
THE NOTES: DAY 1 VOCABULARY (10 MIN)
*Write these down in your notebooks*
Weight - a measure of the force of gravity on an object.
Mass - the measurement of the amount of matter in the object.
International System of Units (SI) - to measure the properties of matter, scientists use this system.
Volume - the amount of space that matter occupies. (volume = length x width x height)
Density - relates the mass of a material in a given volume. (density = mass/volume)
KEY CONCEPT - Unlike weight, mass does not change with location, even when the force of gravity on an object changes.
KEY CONCEPT - Common units of volume include the liter (L), milliliter (mL), and cubic centimeter (cm^3).
KEY CONCEPT - The bar tells you that you can determine the density of a sample of a matter by dividing its mass by its volume.
EVALUATION (10 MIN)
We'll wrap it up here with today's assessment in your learning management system. Feel free to study your notes and/or the videos below. We always recommend viewing the videos the night before the lesson.