Unit 1 Physical Science Ms Coles

 Identify the type of change and properties in this scenario whether it is a physical or chemical change/properties.

Ashley decides to bake herself a cake for her own birthday party. She mixes flour, butter, eggs, sugar, baking powder, milk, salt, and vanilla extract into a liquid batter. Then, she pours it into a pan and bakes the mixture, but actually ends up burning the cake. What is the change and evidence?

• 1. The change is a physical change. The evidence is that the state of matter has changed and the cake is a new form.

• 1. The change is a chemical change. The evidence is that the cake went through the change of states of matter and change in density.

• 1. The change is a physical change. The evidence is that the cake has gone through a size, volume, and density change and the state of matter has been changed.

• 1. The change is a chemical change. The evidence is that the cake has absorbed heat and multiple substances are used to create the new substance of the cake.

Question #4: Subscripts are the small numbers that follow chemical symbols, they indicate the ______ of atoms for elements

• mass

• weight

• number

• formula

Type your answer for any blank of the following diagram:

(It will be marked wrong if you don't write it correctly, also you need proper capitalization, and don't type the letter just the answer) ex. heating

What is an example of a Homogeneous mixture?

• Tomato Soup

• Chicken Noodle Soup

• Trail Mix

• Pizza

True or false: Heterogeneous mixtures are evenly mixed (You cant see the different parts)

• TRUE

• FALSE

What is a mixture?

• 1. Mixtures is something that cannot be divided into parts by physical means, as it's all made up of the same thing.

• 1. Mixtures are a random blend, containing various types of two or more pure substances, which have not chemically reacted with each other.

• 1. Mixtures are a random blend, containing various types of two or more pure substances, which have chemically reacted with each other

• 1. Mixtures are a random blend of elements.

1. Choose the TWO states of matter that have particles very far apart.

• Solid

• Liquid

• Plasma

• Gas

What state of matter has its particles close together?

• Plasma

• Liquid

• Gas

• Solid

An increase of thermal energy in liquids causes them to evaporate, turning the liquid into a gas.

• TRUE

• FALSE

A decrease of thermal energy in liquids causes them to condensate making them a gas

• TRUE

• FALSE