Physical Properties
Simple Mixtures
Special Mixtures-Solutions
Phase Changes
Energy
100

Why is the handle of the pan made of plastic? 

Plastic is an insulator and will prevent you from getting burn.

100
At least how many substances do I need to combine to make a simple mixture?
at least 2, but there can be more
100

At least how many substances do I need to combine to make a solution?

at least 2, but there can be more. 

100

What are the three state of matter and give an example of each?

Solid, Liquid, and gas

Examples can vary. 

100

What does MELTS stand for? Give a short description of each

Mechanical-Motion

Electrical-electrical charge moving

Light-allows you to see

Thermal -heat -particles moving fast

Sound-caused by vibrations

200

Liquids like apple juice have a fixed shape and fixed volume. TRUE OR FALSE? 

FALSE. Liquids take the shape of the containers so they have no fixed shape. But they have fixed volume.

200

Is rice and binder clips an example of a simple mixture? 

Yes

200

Salt is not soluble in water, it won't dissolve. True or False

False. Salt is soluble in water, it will dissolve in water. 

200

What affects the changes of physical states? 

Temperature or Volume

Temperature

200

Energy can be created and destroyed. TRUE or FALSE

FALSE. Energy cannot be created or destroyed only transform

300

Which item is the least dense? 

Cork, its floating and its higher up. 

300

Do the items of a mixture of binder clips and beans keep their physical properties? 

Yes 

300

Sand is not soluble in water, it won't dissolve and will sink to the bottom of container. TRUE OR FALSE? 

TRUE, Sand is not soluble in water, it won't dissolve. 

300

The phase change when solid turns into a liquids its called? Give an example too.

Melting Ex: Ice melting 

300

What items mainly use mechanical energy from the list? (3 correct choices)

Car

Radio

Phone

Dryer 

Lamp

Fan 

Flashlight

Dryer, Car, Fan (energy in motion)

400

Which items from the list are soluble (will dissolve in water)? 

-Sand 

-Sugar

-Mango

-Walnuts

-Lemonade mix

Sugar and Lemonade Mix 

400

Can the items of a mixture of beans and binder clips be separated. If so, how?

Yes, a magnet  or hands or tongs 

400

When a substance dissolves like sugar in salt in water, what happens to the particles of the sugar or salt? 

The particles of the salt get smaller. 

400

The phase change when liquid turns into a solid its called? Give an example too.

freezing Ex:  Ice cube formed 

400

What type of energy does an ipad use and what energy does it transform to (produces) ?

Uses: Electrical

Produces: Light, Thermal, Sound

500

Tell me the following physical properties for iron nail, plastic spoon, and sand 

-Density (Sink or Float)

-Solubility (Yes or No)

-Magnetism(Yes or No)

-Thermal Conductor(Yes or No)

-Electrical Conductor (Yes or No)

Iron Nail-Sinks, Not Soluble, Yes Magnetic, Yes Thermal Conductor, Yes Electrical Conductor

Plastic Spoon-Floats, Not Soluble, No Magnetic, No Thermal Conductor, No Electrical Conductor 

Sand-Sinks, Not Soluble, Not Magnetic, Yes Thermal Conductor, No Electrical Conductor

500

The mixture of beans and binder clips create a chemical change (make a new substance other than beans and binder clips) TRUE OR FALSE AND WHY? 

False. They just stay in the bowl but they keep their physical properties those don't change. 

500

Which one is a solution? 

salt and water 

or 

sand and water

The solution, how can we separate them? 

The solution is salt and water and you can separate them by adding heat. The water will evaporate and the salt will be left behind. 

500

When water vapor starts cooling down and forms droplets of liquid? Give an example

Condensation (Formation of clouds)

500

In a circuit with 2 wires, a battery and a lightbulb. What energies are used and what does it transform to (produce)

Energies used: Electrical

Energies Produced: Light and Thermal 

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