Chemical & Physical Changes
Is the burning of wood a chemical or physical change?
What is a chemical change because the transformation cannot be reversed and the wood cannot be rebuilt.
Who wears a bandana in Season 1 of Stranger Things?
Who is Lucas?
What is the formula for the volume of a block of wood?
What is length*width*height or l*w*h?
List some characteristic properties of liquids
What are viscosity, miscibility, boiling point, melting point, pH, density and volume
What is the difference between a chemical and physical change?
What is a chemical change alters the nature and identity of a material, but a physical change is reversible and does not change the identities of materials?
How many girls are there in our class?
What is 8 girls?
What are two ways to measure volume?
What are 1) water displacement and 2) measurements.
What are characteristic properties of soap?
What are hardness, high melting point, high density, very emollient, Iodine quality
Define matter
What is the atoms that make up a material?
Give an example of a physical reaction?
What grade is our class going into next year?
What is 7th grade?
Is mass uniform throughout an object?
What is yes, most of the time?
What does melting point measure? What tool do we use to measure it?
What is the temperature at which something transitions from solid to liquid?
What is a thermometer?
Does water have mass? How can we measure it?
Give an example of a physical change we observed in class?
What is ice melting? What is butter melting?
Where is Ms. Roberts from?
Where is Ms. Pacas from?
Where is Ms. Forbes from?
What is Atlanta, Boston, Boston?
What is the formula for density?
What is mass/volume?
D=m/v
What is a hammer or another diamond?
How can we check if two objects are made of the same material?
We can check for their characteristic properties or measure their mass, density and/or volume.
How do I know if a chemical reaction has occurred in my experiment?
What is "if I see bubbling, or feel heat or gas. Or if the substance has entirely changed its identity.
What is 2007?
Is the density of styrofoam uniform throughout a styrofoam ball? How do we know?
Yes, because density is a characteristic property of styrofoam.
Do characteristic properties vary with volume?
What is NO.
What is the difference between matter and weight?
Weight depends on gravity, so it varies depending on where in the universe you are