You have two round objects that are both roughly the size of a basketball. One of them weighs 50 pounds, and the other weighs 2 pounds. One is made of rubber and one is made of iron. Which object is more likely to be made of iron?

• the 2 pound object

• the 50 pound object

There are three different liquids layered in the graduated cylinder pictured. If we know that vegetable oil is less dense than water but more dense than honey, which of the liquids is most likely vegetable oil?

• Liquid 1

• Liquid 2

• Liquid 3

Tags

NGSS.MS-PS1-2

Ted and Bill are comparing two samples of matter. They made a table of the properties of each sample.

Which property would indicate that both samples are a solid ?

• Volume

• Mass

• Color

• Shape

Four students in a science class observed and collected data about the properties of a different material. The data table shows the student observations.

Which statement correctly describes one of the materials?

• Edmund observed a solid.

• Dolly observed a liquid.

• Betsy observed a liquid.

• Mildred observed a gas.

Tags

NGSS.MS-PS1-4

In a laboratory experiment, you are given a beaker of liquid and asked to determine what it is. You observe that:

-The liquid is clear

-The liquid is not odorless; it has a distinct smell

Which of the following statements is true?

• The liquid could be water, but it could not be bleach or Coke

• The liquid could be bleach but it could not be water or Coke.

• The liquid must be either Coke or water; it cannot be bleach

• The liquid could be water or Coke, but not bleach

A student has three jars of powdered chemicals that are not labeled. One is salt, one is sugar, and the last one is baking soda. To figure out which is which, the student pours vinegar over each of them and one of them starts to bubble! What is the substance that reacts with vinegar?

• Sugar

• Salt

• Vinegar

• Baking Soda

Tags

NGSS.MS-PS1-2

Gold and Fool's Gold are similar metals yet different. Gold is a lot less durable than Fool's Gold.

How could we test both pieces to find out which one is real Gold ?

• Soak them in water to see if they bubble.

• Smell both pieces of metal.

• We could taste both pieces

• Scratch them both with a nail.

Tags

NGSS.MS-PS1-2

Billy has a piece of Gold and a piece of Fool's Gold. Both substances have the exact same shape and color. Billy knows that real Gold is more dense.

With this information, how could Billy test which one is real gold ?

• Test to see if one of the pieces absorbs water

• Put one substance in baking powder

• Light both substances on fire

• Weigh both substances on a scale

Jerome is given a list of properties of a mystery substance. The list says:

(1) The mystery substance exists as a solid at room temperature

(2) The mystery substance is shiny

(3) The mystery substance can be bent with your hand

(4) The mystery substance is about 1 centimeter long.

Which of these is most likely Jerome's mystery substance?

• a pair of scissors

• a metal wagon

• a staple

• an ice cube

Which property identifies water vapor as a gas?

• It is very cold.

• It spreads through the air.

• It is colorless.

• It is very heavy.