Caleb is working on his old truck cleaning the rust off of the body panels. After he removes the rust, he notices pits in the metal where it is thinner than it originally was. What type of change is rust?

________________ is the measure of the force of gravity on matter.

Weight, Mass, Volume, and Density are the only ways matter can be measured.

While making Thanksgiving dinner, you gather ingredients for the main course and dessert. You realize that most ingredients go through both physical and chemical changes as they cook. One of the ingredients for the main course undergoes physical changes. Which of the following is a physical change?

Did a chemical reaction take place on the silver spoon and fork?

You are preparing to cook your Thanksgiving meal and begin by gathering ingredients for the main course and dessert. You realize that most ingredients go through both physical and chemical changes as they cook. For dessert, you prepare to bake a delicious apple pie. During one of the steps, you notice an example of a chemical change. Which one is it?

Using the picture and the following information to answer the question

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Hydrogen - 2 Hydrogen atoms

Hydrogen chloride - 1 Hydrogen atom & 1 Chlorine atom

Ammonia - 1 Nitrogen atom & 3 Hydrogen atoms

Nitrogen trichloride - 1 Nitrogen atome & 3 Chlorine atoms

Based on the data and the models, which atom is represented by the red clay?

Leaving sugar in a pot on the stovetop with it on results in a brown-colored substance that is composed of glucose and fructose. This type of change is called

A chemical change results in the object being observed still maintaining its properties.

An example of a physical change is oxidation

Which of the following can be done using the models in the picture?

Which term, or terms, can be used to describe this Ammonia model?

A northern right whale migrates from warm waters off Florida to cooler waters off Nova Scotia, Canada. In which area would more thermal energy move from the whale to its environment?

A bowl of mixed fruit is a homogeneous mixture.

A stick of butter is melted in a saucepan. As it continues to cook, the butter turns brown. What changes have occurred?

A bowl of mixed fruits is a heterogeneous mixture

Suppose you find a website that describes the rusting of a nail as a change only to the physical properties of iron. Would that be accurate?

Mass is the best way to measure matter

A bowl of peanuts is a heterogeneous mixture

A molecule is a group of two or more atoms held together by chemical bonds and are always different types of atoms

A bowl of peanuts is a homogeneous mixture

A compound is a group of atoms of different elements

Weight is the best way to measure matter