Matter STAAR Review

Study the diagram  and carefully read the description below the diagram. Gases have no definite shape or volume. Instead, they take the shape of their container. The particles of a gas spread out within the available space. Which diagram illustrates gas particles? 

• Diagram A illustrates gas particles.
• Diagram B illustrates gas particles
• Diagram C illustrates gas particles.
• None of these illustrates gas particles.

5. In the diagram, State of Matter C is a gas. This means that which of the following statements is true about this state of matter? 

• Its particles can move freely throughout the container
• It has a definite volume, but no definite shape
• It has a definite shape and volume
• The particles are rigid and densely placed 

Tags

NGSS.MS-PS1-4

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

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 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

A student measured out 10 mL of four clear liquids and added one drop of a different-colored dye to each liquid. One of the liquids was water. The student then carefully poured each liquid into a graduated cylinder and let the mixture settle for 30 minutes. The student observed that the liquids had separated into layers, as shown in the diagram. Which of these procedures would help the student identify the layer of water?

• Stir the liquids, let them settle, and then identify the bottom layer as water

• Drop a piece of ice into the graduated cylinder, let the ice settle, and then identify the layer just above the ice as water

• Add water to the graduated cylinder, let the mixture settle, and then identify the layer that increases in volume as water

• Carefully pour each layer into separate plastic containers, place the containers in a freezer, and then identify the liquid that takes the longest to freeze as water

Tags

NGSS.MS-PS1-2

A student measures the mass of several substances and records the results in the table below. 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?

• 186 g

• 168 g

• 163 g

• 183 g

Tags

NGSS.MS-PS1-2

A beaker with 100 ml. of solution has a temperature of 19 degrees C. The solution contains 10 g of powdered drink mix and 100 ml of water. Students added three ice cubes and stirred the solution with a spoon. Which properties of the solution changed as the ice cubes melted?

• the mass and volume of the powdered drink mix in the solution

• the relative density and mass of the powdered drink mix in the solution

• the temperature, volume and mass of the solution

• the physical state and magnetism of the solution

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

To make cupcakes, a student put flour, salt, baking soda, sugar and chocolate chips into a bowl. After she stirred the ingredients, she remembered that one of the students in her class could not have chocolate. She used the spoon shown to remove the chocolate chips. Why were they easily removed?

• the chocolate chips were less dense so they were on the top

• after she stirred the ingredients, they formed a solution

• size and shape of the chocolate chips did not change when they were mixed with the other ingredients

• the chocolate chips evaporated when the girl mixed them with the salt

Some properties of two different samples of matter are below.

Which statement about the samples is most likely correct?

• Sample 1 is glass, sample 2 is clay.

• Sample 1 is iron, sample 2 is sugar.

• Sample 1 is copper, sample 2 is wood.

• Sample 1 is milk, sample 2 is salt.

Tags

NGSS.MS-PS1-2

A student adds 10 grams of salt to 50 milliliters of water and stirs for 15 seconds. What change occurs as she stirs?

• The water changes physical state.

• The salt dissolves and spreads evenly throughout the water.

• The volume of the water decreases.

• The salt evaporates into a gas.

Tags

NGSS.MS-PS1-2