LockeD! Reach for the STAARs (5.5A) #2

A student was asked to compare the masses of four blocks that were all the same size but made of different materials. The student used a balance to compare the masses of two blocks at a time. The student repeated this process three more times with different pairs of blocks and recorded the observations. Which list shows the blocks in order from least to greatest mass?

• Blocks N, M, L, P

• Blocks P, M, L, N

• Blocks N, L, M, P

• Blocks P, L, M, N

The table lists some properties of four different samples of matter. Which two samples could be glass and saltwater?

• Samples 1 and 2

• Samples 3 and 4

• Samples 1 and 3

• Samples 2 and 3

Tags

NGSS.MS-PS1-2

Which of these is NOT soluble in water?

• Oil

• Salt

• Honey

• Sugar

A teacher gives a student four clear sealed containers. Each container holds a different substance. The student records some observations about the substance in each container. Based on these observations, which container most likely holds only gas?

• Container 1

• Container 2

• Container 3

• Container 4

Tags

NGSS.MS-PS1-4

Some students investigate the properties of four objects using a hand lens, a magnet, and a beaker containing water. Their observations are recorded in the table. Which statement identifies a property that could be used to classify these objects into two different groups?

• Density can be used to separate objects that sink in water from objects that do not

• Magnetism can be used to separate objects that are attracted by a magnet from objects that are not.

• Solubility can be used to separate objects that dissolve in water from objects that do not.

• Physical state can be used to separate objects that are solids from objects that are not.

Tags

NGSS.5-PS1-3

A student classifies the objects shown based on their physical properties. Which properties CANNOT be used to classify these objects into more than one group?

• Magnetism

• Mass

• Electrical conductivity

• Solubility in water

Tags

NGSS.5-PS1-3

A science class tested three properties of different materials. The results are shown in the table. Based on the table, which material would be best to use to insulate electrical wires?

• Wood

• Plastic

• Copper

• Steel

Tags

NGSS.MS-PS1-2

A student measures the mass of several substances and records the results in the table shown. What is the difference in grams between the total mass of the liquid substances and the total mass of the solid substances used in the investigation? ________ grams.

A teacher wears protective gloves to lift a metal pan filled with boiling water from a hot plate. Why are the protective gloves necessary?

• The metal pan creates thermal energy

• The metal pan insulates thermal energy

• The metal pan conducts thermal energy

• The metal pan reduces thermal energy

Tags

NGSS.MS-PS3-3

Objects that blow into a swimming pool or that are dropped into the pool by swimmers need to be removed. These objects include foam cups, keys, and coins. Which of the following explains a useful method for removing some of these objects?

• The keys and coins are less dense than the water, so they can be easily picked up off the bottom of the pool by divers.

• The foam cups have the same density of water, so they can be crumbled up for removal by the pool filter.

• The foam cups are less dense than the water, so they can be removed from the surface with a pool cleaning net.

• The keys and coins have the same density as water, so they can be washed away when the pool is drained.