6.6

What two elements make up water?

• Helium and oxygen

• Hydrogen and oxygen

• helium and carbon

• oxygen and carbon

Tags

NGSS.MS-PS1-1

How many atoms of Oxygen are in a water molecule?

• 1

• 2

• 0

• 3

Tags

NGSS.MS-PS1-1

The charge of the hydrogen atoms is __. (HINT: it takes 2 mathematical symbols to make a letter H.)

• positive

• negative

• neutral

List the steps of the scientific method

d

e

f

c

b

a

Form a hypothesis

Analyze results

Ask a question

Conduct experiment

Draw conclusions

Communicate results

Tags

NGSS.MS-PS2-2

The charge of the Oxygen atom is __.

• negative

• neutral

• positive

Tags

NGSS.MS-PS1-1

Water is a ____ molecule since the Hydrogen atoms have a slight POSITIVE charge

and the Oxygen has a slight negative charge.

• Tropical

• Polar

• Icy

Tags

NGSS.MS-PS1-1

Which solute WILL dissolve in water?

• sugar

• oil

• sand

• pepper

Tags

NGSS.MS-PS1-2

Which solute will NOT dissolve in water?

• oil

• salt

• drink powder

• ice

Compare 50 cm³ of hot water and 50 cm³ of cold water. Which statement(s) are correct?

• only

• only

• and only

• and only

Tags

NGSS.MS-PS1-4

Why can people float on the Dead Sea?

• We are lighter than water

• We are heavier than water

• We are denser than water

• We are less dense than water