The Properties of Matter Essential Questions: What is Matter? What is mass? What is volume?

Objectives Describe the two properties of all matter. Identify the units used to measure volume and mass. Distinguish between mass and weight.

Matter Matter is anything that has mass and takes up space. They are all made-up of MATTER! What do all these things have in common? Matter Matter is anything that has mass and takes up space. It’s that simple! Everything in the universe that you can see is made up of some type of matter.

What is matter? Anything that has mass and takes up space Everything you see: boats, cars, people Some things you cannot see like air

Matter and Volume: The amount of space taken up, or occupied, by an object is known as the objects volume. Liquid Volume Liters (L) and milliliters (mL) are the units used most often to express the volume of liquids. Measuring the Volume of Liquids -We will use a graduated cylinder instead of a measuring cup to measure the volume of liquids. The curve at the surface of liquid is called a meniscus.

What is Volume? The space taken up by an object. Two objects cannot share the same space. Ex: Air and Water in the quick lab What is Volume?

Quick Lab Review Can water and air both occupy the inside of a cup at the same time? As a lab group, review the results from your experiment. Continue your discussion on why the towel was the way it was AFTER your experiment. Can you now use science to support why the towel was dry? Teacher shows what happens if there is a place for matter to escape.

Read the bottom of the curve for accuracy Graduated cylinders and beakers. Liquid in these have a meniscus curved water line Read the bottom of the curve for accuracy What materials are used to measure volume?

Define and Draw the meaning of: Meniscus Meniscus is the curve at the surface of liquid. Draw: Meniscus

Liters (l) and milliliters (ml) What unit is Used to Measure liquid volume? Liters (l) and milliliters (ml)

Volume of a Regularly Shaped Solid Object The volume of any solid object is expressed in cubic units. The word cubic means having three dimensions. Volume of an Irregularly Shaped Solid Object You can measure the volume of any solid object by measuring the volume of water that the object displaces.

Multiply the three dimensions of the object volume = length x width x height or v = l x w x h units used will be cubic meters (m3) or cubic centimeters (cm3) How is the Volume of a Regularly Shaped object found?

How is the volume of an Irregularly shaped object found? Water displacement method drop an object in a known volume of water (30 ml) the water level will rise (40 ml) The difference between the 2 levels represents the volume of the object: 40 – 30 = 10ml 1 ml = 1 cm3 both can represent volume Almost always liquids in ml and solids in cm3

Quick Lab In your Science binder, start a new page titled: Quick Lab. Finding the Volume of an Irregular Object. Using what you have learned today, set-up a quick lab that allows you to measure the volume of the marbles at your table. WHAT WERE YOUR RESULTS?

Mass and Weight Mass: Weight: force exerted on an object. Mass is the amount of matter in an object. Weight: Weight is a measure of the gravitational force exerted on an object.

Measuring Mass and Weight Mass Measurement: The SI unit of mass is the grams (g), but mass is often expressed in kilograms (kg) and milligrams (mg), too. Weight Measurement: Weight is a measure of gravitational force and is expressed in the SI unit of force, the newton (N).

What is the difference between mass and weight? video Mass will stay the same for an object at any location Mass measures an objects amount of matter Measured in grams (g) or kilograms (kg) Weight changes due to gravity’s force and distance of celestial body Planets, stars, etc. Measured in Newtons and pounds What is the difference between mass and weight? video

Review Objectives Describe the three properties of all matter. All matter has mass, volume Identify the units used to measure volume and mass. The unit for Volume = milliliter (ml) or cubic centimeter (cm3) The unit for Mass = kilogram (kg), gram (g), and milligram (mg) Distinguish between mass and weight. Mass is the amount of matter in an object. Weight is the gravitational force on an object.

Annotated reading assignment w/questions Students work in partners, one reads while the other annotates: Circle or underline words you do not understand. Write any questions in the margins After reading one paragraph students stop, discuss and summarize, especially if there are words or phrases circled/questions in margins For each paragraph switch jobs. After all of reading and discussion is complete begin questions. Take turns recording answers in space provided. Highlight the answer in the text and notate on the answer paragraph # and sentence # where found.