SCIENCE CLASS Thursday, October 1 st

TECHNOLOGY TODAY  Hello All, I am out today because I am sick. Please be on your best behavior today.  You will complete today’s activities on a chromebook.  Go through each slide and complete the activities within the ppt.  Record all information on a separate sheet of paper and we will get this information into your science notebook tomorrow.  Thanks!!

TO FINISH OUR DISCUSSION OF SOLUBILITY:  To ensure everyone understands solubility, you will click on the video link below and answer the following questions in your interactive notebook:  Login info for Discovery Ed: (username cms id # _ cms) (password cms id#)  Record the following 4 definitions:  1 Soluble:  2 Insoluble:  3 Solubility:  4. Saturated solution:  What three factor affect the rate of dissolving?  FDFB-41D8-966B-F3D3FA FDFB-41D8-966B-F3D3FA258508

STUDY JAMS VIDEO  You will be watching a video on properties of matter  Directions are on the next 2 slides  Video link: Video link:  s-of-matter.htm s-of-matter.htm

PLEASE KNOW….  You will be watching and listening to the video 2 times to answer these questions

STUDY JAMS – PROPERTIES OF MATTER  Copy these questions in your notebook after the Temperature and Solubility Lab ( 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?

STUDY JAMS – REVIEW YOUR ANSWERS  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….  We have learned a new vocabulary word: Density  Who can read the definition of density from their notes?  Density is….

WRITE IN NOTEBOOK AFTER STUDY JAMS QUESTIONS  Formula: Density = Mass / volume  Different substances have different densities

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

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

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

ONLINE DENSITY LAB!  You will soon be investigating different forms of matter to better understand density

DENSITY LAB….  You will watch a video for our lab (video link on a following slide)  First - write down these common liquids in notebook  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 notebook (2 minutes)  Think about layering these liquids together the same container  Predict which liquid would be at each number ayer  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 correctly!

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 – WATCH AND TAKE NOTES  “Density”  d/9568A00B-6FF0-4C E6183CC8 d/9568A00B-6FF0-4C E6183CC8  “Measuring Volume and Density” d/0312CAB8-5A02-4B16-8A66-AB70576ED263 d/0312CAB8-5A02-4B16-8A66-AB70576ED263  “Measuring density”  d/886A0ECD-33AC-4A5B-A184-FB5C91FE2A07 d/886A0ECD-33AC-4A5B-A184-FB5C91FE2A07