SCIENCE CLASS Tuesday, October 7 th (A day) Wednesday, October 8 th (B day)

WARM UP  Turn in your notebook where you glued your properties of matter foldable and write this warm up down:  Water freezes at 0° C / 32° F  Water boils at 100 °C / 212 ° F  What state of matter (solid, liquid, gas) is water at the following temperatures?  214° F ________2 ° C ___________  105 ° C _________-2 ° F __________ 

LET’S CHECK OUR UNDERSTANDING  Water freezes at 0° C or 32° F  Water boils at 100 °C or 212 ° F  What state of matter (solid, liquid, gas) is water at the following temperatures:  214° F _gas_2 ° C _liquid_  105 ° C _gas_2 ° F _solid_

STUDY JAMS – PROPERTIES OF MATTER  Copy these questions down in your notebook: Leave space in between each question so you can write the answers  1. What is density?  2. What are 3 properties of matter?  3. Can the mass of an object change?  4. How can we determine the volume of round or weird shaped objects?  5. Why do beach balls float and golf balls sink?  You will be listening to the video 2 times to answer these questions

STUDY JAMS VIDEO  s-of-matter.htm s-of-matter.htm

STUDY JAMS – PROPERTIES OF MATTER  1. What is density? Density is an objects’ mass divided by its volume  2. List 3 properties of matter? mass, volume, density  3. Can the mass of an object change? No  4. How can we determine the volume of round or weird shaped objects? You can put it in water and see how much the water is displaced (or how much the water level moves up)  5. Why does a beach ball float and a golf ball sink? Beach balls are less dense than the water and golf balls are more dense than water.

DENSITY LAB…  Think back to our last class….  We learned a new vocabulary word: Density  Density measures how heavy something is for its size  Formula: Density = Mass / volume

DENSITY NOTES  Different substances have different densities

WRITE THIS DOWN !  Density of water = 1.0 gram / mL  Mass is measures in?  GRAMS  Volume is measure in?  LITERS

DENSITY LAB!  You will soon be investigating different forms of matter to better understand density in a group  You will receive 1 handout  We will go over this handout together before you start the lab

LAB GROUPS  You will count off from 1 – 5  You will work in the group number that matches the number you just counted out loud in our class  You have 1 minute to move to your group  Go Now!

WRITE THIS DOWN : DENSITY NOTES  If density of a substance > the density of water = it will sink  If density of a substance < the density of water = it will float

DENSITY LAB…. HANDOUT #1  You will test 5 items in your group  1 st -make a prediction  2 nd - drop the item in water  3 rd – record observations  4 th – state if it sinks or floats and why  5 th – glue in notebook

DO WE UNDERSTAND?  Does everyone understand why some objects float and some objects sink?  It is all because of density!  Objects float in water = density <1.0 g/mL  Objects sink in water = density> 1.0g/mL

DENSITY LAB…. #2  You will watch a video for the 2 nd part of our lab  First - write down these common liquids  1. Rubbing alcohol  2. Dish soap  3. Pancake syrup  4. Milk  5. Vegetable oil  6. Water  2 minutes

DENSITY LAB…. #2  Next draw this table in your (2 minutes)  Think about layering these liquids together the same container  In your group, predict which liquid would settle in each layer  For example if you think the water will end up on the bottom, list water in #6  3 minutes – GO! Liquid Name

DENSITY LAB…. #2  1 st – Watch the demonstration  2 nd - Draw another table  3 rd – Record each liquid layer!

VIDEO – 6 LAYER DENSITY COLUMN 

OIL AND WATER QUESTION?  Oil’s density = grams/ mL  Water’s density = 1.0 g/ mL  We mix oil and water together  Which will be on top?  Why?  The oil is less dense that water so it will float on top

DISCOVERY ED. VIDEOS  “Density”  “Measuring Volume and Density”

HOMEWORK  You will receive a handwork assignment now  We will go over the assignment together  Does anyone have any questions?  Homework due date: (A day) (B day)