Four different liquids will be separately poured into a single beaker. The liquids are ethanol, milk, oil, and water. The density for each liquid at room temperature is listed in the table below. How will the liquids be arranged from bottom to top in the beaker?

• milk, water, oil, ethanol

• milk, water, ethanol, oil

• water, milk, oil, ethanol

• water, oil, ethanol, milk

Tags

NGSS.MS-PS1-2

How does a piece of paper’s ability to be folded in half compare to its ability to burn?

• Its ability to be folded is a physical property, while its ability to burn is a chemical property.

• Its ability to be folded is a chemical property, while its ability to burn is a physical property.

• Both are physical properties of the piece of paper.

• Both are chemical properties of the piece of paper.

Which equation represents a neutralization reaction?

• acid + water → salt + base

• acid + base → water + salt

• acid + salt → base + water

• water + base → salt + acid

Tags

NGSS.MS-PS1-5

This chart shows the effects of several solutions on litmus paper. Which information can be determined from the litmus paper tests?

• Solutions 1 and 5 are both acids.

• Solutions 2 and 8 are both neutral.

• Solutions 3 and 6 are both bases.

• Solutions 4 and 7 are both acids.

Tags

NGSS.MS-PS1-2

A 100-gram sample of cerium-143 has a half-life of 33 hours. How long will it take until there are only 6.25 grams of cerium-143 left?

• 66 hours

• 99 hours

• 132 hours

• 165 hours

Tags

NGSS.HS-PS1-8

The chart below lists the specific heat capacity of four different metals of equal mass. If the temperature of each metal were increased from 20°C to 25°C, which metal would require the least amount of heat to raise its temperature?

• copper

• gold

• nickel

• titanium

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A gas

• has a definite shape but no definite volume
• has a definite volume but no definite shape
• has fast-moving particles

Tags

NGSS.5-PS1-1

NGSS.5-PS1-3

What happens in ALL chemical changes?

• Change in state of matter
• A new substance is formed
• Bubbles are produced
• An explosion

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The Law of Conservation of Mass tells us matter can't  ______________.

• change color
• change state of matter
• be created or destroyed
• change temperature

Tags

NGSS.MS-PS1-5

What line segment represents only the solid state?

• A-B
• B-C
• C-D
• D-E

Tags

NGSS.MS-PS1-4