In an experiment, determining how the temperature of water affects the dissolving rate of Alka-Seltzer, what is the temperature of water?

• controlled variable

• dependent variable

• independent variable

Tags

NGSS.MS-PS3-4

In an experiment, determining how the temperature of water affects the dissolving rate of Alka-Seltzer, what is the dissolving rate of water?

• controlled variable

• dependent variable

• independent variable

In an experiment, determining how the temperature of water affects the dissolving rate of Alka-Seltzer, what is the same amount of water?

• controlled variable

• dependent variable

• independent variable

Which of the following is a chemical property of matter?

• property that can be observed

• property of how a substance can be sensed

• property of how a substance looks

• property of how a substance reacts with another

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Sugar dissolving in water is an example of solubility. Solubility is a ________________________ property.

• physical

• chemical

Which of the following is a chemical change?

• water freezing

• wax melting

• a nail rusting

• glass breaking

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Flammability is a ________________________ property.

• physical

• chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Boiling Point and Melting Point are ________________________ properties.

• physical

• chemical

Tags

NGSS.MS-PS1-4

All things in the world are made of ___________________.

• cells

• matter

• legos

• tissue

Tags

NGSS.MS-LS1-1

All matter has _______________ and _____________________.

• mass, shape

• shape, color

• color, volume

• mass, volume