12/9 & 12/10 - 8th Grade Agenda Learning Objective: Learn about Fire Safety Collect HW: Reading & Notetaking: p.119 – 122 Textbook Reading p. 256-258 HW: Reading & Notetaking p.124 – 125 Reminder HW: Science Fair Background due 1/14 & 1/15 (10 Points)

Daily Reflection Prompt: Write 3 facts about fire safety.

What is combustion? Combustion is a rapid reaction between oxygen and a substance called a fuel.

What are the three things necessary to start and maintain a fire? Fuel Oxygen Heat

What are four common sources of fires at home? Small heaters Fires in the kitchen Faulty electric wiring Carelessness with cigarettes.

How can you fight a fire? A. Blow air on it? B. Cover it with baking soda? C. Use a fire extinguisher? D. Pour water on it?

Which of the following is a safety aid in a fire safe home. A) smoke detectors B) gasoline can in the basement C) Fire extinguishers D) Box of baking soda in the kitchen

Solution vs Suspension What is a mixture in which particles can be seen and easily separated by settling or filtration? Suspension Chalk and water when we mix substances they stay in clusters

Solution vs Suspension What is a well mixed mixture? Salt and water If you taste a salt solution, any sip tastes just as salty as the next.

Solvent vs Solute The part of the solution present in the largest amount is called… In Salt water which part is the solvent? Water

Solvent vs Solute A substance present in a solution in a smaller amount is called… In Salt water which part is the solvent? Salt

Something we drink is also known as the “universal solvent” Water Why? Because it dissolves so many substances. Water solutions are essential in the living world

What two factors affect the solubility of a substance? Temperature Type of solvent Most solids become more soluble as the temperature goes up Most gases becomes less soluble as the temperature goes up

What is a solution? In a solution, particles are uniformly distributed and too small to scatter light.

What is a colloid? A Colloid is a mixture that contains small undissolved particles that do not settle out.

What is a Suspension? A suspension is a mixture in which particles can be seen and easily separated by settling or filtration.