Table Of Contents 13 L Quiz Reflection13 R Matter Quiz 14 L Solid, Liquid, Gas drawing 14 R Changing States of Matter Notes 15L Frayer Model (Solid)15 R Changing States of Matter Notes 16R Changing States of Matter Notes (or blank) 17L Deep Freeze Lab..what? 17R Deep Freeze Lab 18L Oobleck Lab Conclusion 18R Oobleck Lab 19L Flo-cabulary lyrics19R Flo-cabulary 20L Density Introduction20R Density Demo Lab 21 R Matter, Energy Quiz 22R Density Notes

WARM-UP 13L 1)If you have two solids that look alike and you want to tell them apart…how could you do it. You are not allowed to taste it or smell it.

Homework Notebooks..??? Update your index with all vocabulary words….Remember you need the word and the page umber written.

Agenda Respect Month 2 Flocabulary presentations Density Notes

Review….just read Matter: anything that has mass and takes up space (volume) Everything in the universe is made of matter Made of tiny particles called atoms –Is it Matter? Yes/No –A car? A box? You? Heat? Light?

Notes….page 14R All forms of matter have chemical and physical properties. Physical Property is anything that can be observed without changing the identity of the substance. Examples are melting point, boiling point, freezing point, color, odor, hardness and density. We have discussed physical properties: –Melting point, –Boiling point –Freezing point

Density

Review Definitions Just Read Mass – amount of matter contained in a substance Volume – amount of space an object occupies

Write this down….page 14R Density: A measure of how much mass is contained in a given volume. Density is a physical property. Formula…..

Simple Equation

How can we remember the formula for density? We LOVE density (it makes a heart! …see example on board)

Density is important: Physical property that can be used to identify a substance. Floating, objects float if LESS dense than the liquid it is placed in

Density (Cont.) Density is made up of two measurements 1.Mass 2.Volume Units are: –grams per cubic centimeter (g/cm 3 ) OR –grams per milliliter (g/mL). 1 cm 3 = 1 mL Water’s density is 1 g/mL (or 1 g/cm 3 )

Water….discussion only Are we more or less dense than water?

Examples (Write this on page ___R..show work steps. (1)What is the density of a wood block with a volume of 100 cm 3 and a mass of 25 g? (2) What is the density of a liquid with a mass of 45 g and a volume of 48 mL?

A cube has a mass of 2.8g and occupies a volume of 3.67mL. Would this object float or sink in water? This object would _______________ in water because its density is _____________ than water whose density is ______________.

3) A liquid has a mass of 25.6 g and a volume of 31.6 mL. Calculate its density. What is the identity of the liquid? ______________________ *Use the information below for reference. Substance Density (g/mL) Mercury 13.6 Water 1.0 Ethanol 0.81

Think about it… Which is more dense: Salt water or fresh water? Discuss with partner. Record on page 22L

Thinking Critically…Page 22L Draw this in your notebook. How could you create something like this? (Use what you know about the densities of different liquids) Which layer is the most dense?

How did it separate? Top: Corn Oil (D = g/cm 3 ) Middle: Water (D = 1.00 g/cm 3 ) Bottom: Corn Syrup (D = 1.38 g/cm 3 ) (What other examples can you think of seeing oil float?)

More Practice…

Last one…