Students have two blocks that are the same size. They drop each block into a beaker of water. Why does Block 1 float and Block 2 sink?

• Block 1 is made of a different material than Block 2

• Block 1 is smaller than Block 2

• Block 1 absorbs more water than Block 2

• Block 2 has less mass than Block 1

Tags

NGSS.MS-PS2-4

A student makes a table to classify substances as solids, liquids, or gases. The student's table is shown. How many substances listed can be identified as solids, liquids, or gases?

• 1 solid, 1 liquid, 2 gases

• 2 solids, 1 liquid, 1 gas

• 1 solid, 2 liquids, 1 gas

• 2 solids, 2 liquids, 0 gases

Four students sort materials into two groups: Conductors and Insulators. Which student correctly sorted the materials?

• Student 1

• Student 2

• Student 3

• Student 4

Tags

NGSS.MS-PS2-3

Which of these materials would NOT be a good insulator of electricity?

• metal

• glass

• plastic

• wood

As an object melts, what happens to it's temperature?

• it increases

• it decreases

• it stays the same

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which substance is NOT soluble in water?

• powdered drink mix

• sugar

• salt

• sand

During a science investigation, a student determined how objects could be classified. Based on the properties, which of the following materials has the same physical properties as Object B?

• iron nail

• salt

• sand

• penny

The table shows how a student sorted objects by properties. Based on the information collected for both groups, which is the best title for Group 1?

• Objects That Conduct Electricity

• Objects That Make Good Insulators

• Objects That Are Magnetic

• Objects That Float

Which tools are best for separating a mixture of sand, iron filings, and water?

• hot plate and filter

• tweezers and filter

• filter and magnet

• magnet and hot plate

Which substances, when mixed together, maintain their original physical properties?

• gravel and water

• wood chips, water, and sand

• sand and water

• all of these