Cat 1-Science

Cat 1-Science

Review

look at these two substance...what's their physical state?

How would you separate them?

Multiple Choice

How would you separate a cork and sand?

• by magnetism and conductivity

• sink/float (density) and strainer

• strainer and evaporation

• magnetism and density

Iron fillings and water...What do you observe?

Multiple Choice

How would you separate iron filings and water (easiest way)?

• magnet

• stainer

• evaporation

• filter

Wha are we testing here?

Which one has MORE denssity?

Which one has LESS density?

Multiple Choice

what are we testing in the previous picture?

• density

• magnetism

What do we see here?

Did it dissolve?

Multiple Choice

To demonstrate that the iron filings have kept their physical properties in the mixture, What should you do?

• use a strainer

• pass a magnet through it

• melt one of substance

• heat the mixture

What is happening to the chocolate?

What causes this?

What state of matter is it?

Multiple Choice

Which statement describes what is happening to the chocolate bar?

• the mass is being destroyed

• its using up its heat energy

• the density is changing

• it is causing to change the state of matter

What do you notice about the ites state of matter?

sprinkle?

salt?

jello?

What do you think they are testing?

Multiple Choice

If you have salt, sugar, sand and another powder substance, what do you think you would most likely be testing out (experimenting)?

• mass

• volume

• density

• solubility in water

Multiple Choice

A teacher is conducting an experiment. She has notebook, plastic tweezers, cardboard and an iron rod. How would you sort or classify the iron rod?

• physical state

• magnetism

• solubility in water

• density in water

Multiple Choice

There was a mystery item on the desk. We did not know what it was. The only thing that we knew was that it was a:

1. 1.a solid
2. 2.magnetic
3. 3.did not dissolve in water
4. What could it be?

• cork

• plastic paperclip

• iron nail

• pencil

Poll

What does NICS stand for?

• nickel, iron, Cheetos, salt

• nickle, iron, cobalt, steel

• brass, aluminum and steel

• nickle, iron, cobalt

What do you observe?

• In what state of matter is it in?

• Is it soluble?

• Is it more dense or less dense that water?

• Is it magnetic? (NICS)

What is a filterl used for when separating mixtures?

Multiple Choice

a filter/paper towel can be used to separate which of the following?

• salt and water

• shampoo with water

• sand and water

• dish soap

Poll

When you see the word iron, what strategy should come to mind?

• monkeys have fun farting everywhere

• NICS