Big Idea 1 and 2 and Matter

Which state of matter has no definite shape but has definite volume?

• solid

• gas

• liquid

• plasma

Which of the following name chemical changes only?

• ripping, melting, freezing

• rusting, rotting, condensation

• rotting, digestion, rusting

• boiling, melting, freezing

When scientists use their 5 senses they are...

• observing

• conducting an experiment

• validating their results

• predicting the outcome

Which of the following would dissolve in water?

• sand

• salt

• oil

• basil leaves

What method would you use to separate a mixture of sugar and water?

• flitration

• flotation

• magnetism

• evaporation

What type of molecules are shown in the image?

• solid

• liquid

• gas

• plasma

Joe is conducting an investigation. He wants to see which type of light bulb can make a plant grow. Joe has 4 plants, 1 gets a incandescent bulb, 1 gets a florescent bulb, 1 gets a neon bulb and the other gets a low wattage bulb. What could Joe do to make his investigation valid?

• Joe should measure the plants only at the end.

• Joe should get a friend to do the experiment with him.

• Joe should add a 5th plant with a black light.

• Joe should add a control group that gets light from the sun.

Heating up matter causes it to

• gain energy

• lose energy

• keep the same amount of energy

• both gain and lose energy

Water changing from a a gas to a liquid is called

• melting

• freezing

• evaporting

• condensation

Water changing from a solid to a liquid is called

• melting

• freezing

• evaporating

• condensation