Science Leap

What happens to the speed of evaporation of water when the temperature increases?

• speed of evaporation decreases

• speed of evaporation increases

• speed of evaporation stays the same

Tags

NGSS.MS-PS1-4

The law of conservation of mass states that the total mass of the reactants is ________.

• Equal to the mass of one of the products but not the other.

• Less than the mass of the products.

• Greater than the total mass of the products.

• Equal to the total mass of the products.

Tags

NGSS.MS-PS1-5

Looking at the chemical equation pictured, how many CARBON atoms are there on each side?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Looking at the chemical equation pictured, how many OXYGEN atoms are there on each side?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-5

Looking at the chemical equation pictured, how many HYDROGEN atoms are there on each side?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Looking at the same chemical equation from above, which statement is true?

• The total number of atoms in the reactants in less than the total number of atoms in the products.

• The properties of the reactants are the same.

• The amount of matter in the reactants is the same as the amount of the matter in the products.

Tags

NGSS.MS-PS1-5

What causes water vapor to rise into the atmosphere?

• The ocean

• The Sun's energy

• The force of gravity

Tags

NGSS.MS-ESS2-4

Alfred Wegener named his single supercontinent ____________, which means "all Earth" in ancient Greek.

• Pandora

• Gandowandaland

• Pangea

• Percia

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

True or False: The continental plates move so quickly that we can feel them.

• True

• False

Tags

NGSS.MS-ESS2-3

Which process does the diagram show?

• freezing

• boiling

• evaporation

• melting

Tags

NGSS.MS-PS1-4