Q3 Week 2 Warm-up

Ms. Goodwyn burns a wooden coffee stirrer and describes it as a chemical change. Why is it considered a chemical change?

• An identical melting point

• It has the same chemical composition as wood

• Its properties differ from wood

• The same physical properties as wood

Label the following as element, compound or mixture.

• mixture

• Salt added to make the cupid’s love potion brew faster

• element

• Conversation hearts

• compound

• A gold nugget

Circle only the COMPOUNDS from the sample below. NaCl, C, Na, H, H2O, Li, NaOH

• NaOH

• NaCl

• Na

• C

• H2O

The turkeys get cold in the winter, so farmers put straw in their coops, the straw acts as an (a)   .

• conductor

• insulator

Eggs, sweet potatoes, brown sugar, condensed milk, and flour were mixed & baked to make a pie. What type of change occurred?

• Chemical change

• Physical change

• Biological change

• Nuclear change

Eggs are placed in boiling water to make deviled eggs. The movement of heat inside the pot is an example of which type of heat transfer?

• Conduction

• Convection

• Radiation

When something “bubbles & fizzes” gas is produced, is this a chemical or physical change?

• Chemical Change

• Physical Change

Which of the following would be the physical properties of a Valentine’s Day Card? (Circle the answers) Color, Shape, Rust

• Color

• Shape

• Rust

Cupid makes a love potion that contains sodium chloride and water. What is the solute and what is the solvent of the potion? Solute is ​ (a)   and solvent is ​ (b)  

• sodium chloride
• water

You determine that the volume of your valentine’s day heart is 250L and its mass is 340g.  Calculate the density? d=m/v

Mathematical Equivalence

ON