OpenSciEd 7.1 Lesson 1-3 CFU

What happened when the bath bomb ingredients were mixed one at a time with water?

• Nothing. No NEW gases were created.

• Bubbles were formed at the bottom of the container.

• The temperature of the mixture increased and began to boil.

• The water and ingredients disappeared.

Which of the bath bomb ingredients below is INSOLUBLE in water?

• olive oil

• sugar

• baking soda

• Epsom salt

A system that we can seal so that nothing can enter or exit is a:

• Closed System

• Open System

A phase change means?

• Gas was produced

• A chemical change has happened

• Changing from Hydrogen to Oxygen

• Changing from liquid, to gas, to solid

If something is SOLUBLE in water that means:

• It floats

• It can NOT break down and dissolve when added to water

• It changes the color of the water

• It CAN break down and dissolve completely

What happened when each bath bomb was placed in a closed bag one at a time and crushed?

• Nothing. No gas was produced.

• The bag inflated with air.

• A new liquid was produced.

• The bag floated up.

What ingredient is found in each of the homemade bath bomb recipes?

• citric acid

• water

• olive oil

• baking soda

The three states of matter are:

• Air

  Properties

  Chemicals

• Liquid

  Plasma

  Gas

• Solid

  Liquid

  Gas

• Oxygen

  Nitrogen

  Helium

If something is INSOLUBLE in water that means:

• It floats

• It can NOT break down and dissolve completely

• It changes the color of the water

• It CAN break down and dissolve completely

Properties are:

• All listed on the periodic table of elements

• Characteristics of substances that don't change and are observable

• Elements that are flammable and less dense than air

• The way we measure the amount of gas in a system