Remember: As long as you act like a scientist when we do science, you will be treated like a scientist and conduct investigations. If not, you get to watch the rest of us do science.
How does temperature affect the particles in a gas?
- Do Now- Get out your science notebook and add to your Table of Contents- “Particles in Gas -p.45” (Right Side). Head page 45 properly with “Particles in Gas- 2/1/18.”
- Demonstration- Basketball and Compressed Air- How do these demonstrations show that gas is matter? Answer questions 1 & 2 on handout.
- Investigation- How does temperature affect the particles in a gas? On ISN p.45, determine the experimental variables and a hypothesis for the key question. Read procedure on handout. Review Science Safety Regulations and complete Lab Safety Checklist- Before You Begin. Review Table Group Member Responsibilities. Begin Lab! Draw a picture of your observations in the space below questions 4 & 5 and answer What Did You Observe? questions #4 & 5.
Does temperature affect the speed of particles in a solid?
- Do Now– Get out your science notebook and add to your Table of Contents- “Particles in Solid- p.43” (Right Side). Open your notebook to page 43 and head it properly with “Particles in Solid-1/25/18.”
- Scientists Circle– Discuss with your group the following questions: What do you know about molecules in a liquid? How does heating or cooling affect the speed of the molecules and the distance between them? Do you think what you learned about molecules in a liquid would be the same as or different than the particles in a solid?
- Demonstration Investigation– How does temperature affect the particles in a solid? Set up page 43. Determine experimental variables and a hypothesis, and for the key question. Observe the ball and ring demonstration and record your observations on ISN p.43. Then, answer questions 3-5 on the Demonstration handout. Trim and tape the demonstration handout as a flip page to ISN p.43.
Does water hold together well or come apart easily?
- Do Now– Copy down your homework assignment in your planner. Get out your science notebook and add to the Table of Contents- “Water Investigation-p.38” (Left Side). Head page 38 properly with “Water Investigation-1/9/18.”
- Scientists’ Circle- Bring your ISN and share observations. When you squeezed the drop of water out of the dropper, did the water break apart or did it hold together? When you tilted the wax paper, did the drop split apart or stay together? When you were pulling the drop around the wax paper, did the water seem to hold together or come apart easily? When you tried to split your drop, did the drop separate easily? What happened when the two small drops touched?
- Demonstration– Food coloring in water- What do you observe? What does this tell you about the particles that make up water?
- Model– On ISN page 38, draw a model of water on molecular level based on your observations of the investigation and the demonstration. Make a claim about whether water holds together well or comes apart easily. Support your claim with evidence and reasoning. Observe animation of liquid water molecules and adjust model.
Complete CER on ISN p.38
- Substances are made from different types of atoms, which combine with one another in various ways. Atoms form molecules that range in size from two to thousands of atoms.
- Each pure substance has characteristic physical properties (for any bulk quantity under given conditions) that can be used to identify it.
- Do Now- Get out your science notebook and add to your Table of Contents- “Sinking & Floating Liquids p.65” (Right Side). Head page 65 properly with “Sinking & Floating Liquids-Demonstration-3/6/17.”
- Demonstration (Period 4)– Why does a heavier candle float and a lighter piece of candle sink? Record your demonstration observations on page 63.
- Model (Periods 2, 6, & 7)–Answer Question 4 about density of water, wax, & a candle on the molecular level. Trim and tape the handout to page 62.
- Demonstration- Do all liquids have the same density? Record your demonstration observations of the candles floating on two different liquids and the density column on page 65. Tape Questions 3 & 5 to page 65.
- Model- Answer Question 6 about water alcohol and oil on the molecular level. trim and tape the handout to page 64.
Period 3- Take It Further Questions 7-10 handout