Science DCP #1 Practice Review '24-25

Most dense

• Vegetable Oil

• Lamp oil

• Honey

• Ping pong ball

Object 1 is ​ (a)   ​​

Object 2 is ​ (b)  

Object 3 is ​ (c)  

• same density as water
• less dense than water
• more dense than water

Tags

NGSS.MS-PS1-2

Match the following

• Absorption

• 
• Reflection

• 
• White light is collection of all colors

• 
• Transmit

• 
• Refraction

• 

Tags

NGSS.MS-PS4-2

A worker built a sidewalk and pressed some large salt particles into the concrete while it was still wet. When the concrete was dry, the worker washed the sidewalk with water. The picture below shows the sidewalk after it was washed.

What most likely happened to the salt?

• It evaporated into a gas.

• It turned into concrete.

• It dissolved in the water

• It turned into a solid.

Tags

NGSS.MS-PS1-2

When a powdered drink mix was added to water, the liquid turned orange. A student decided the taste was too strong, so he poured out half of the liquid and added more water. Which of the following most likely occurred when more water was added?

• The physical state changed.

• The orange color became lighter.

• The liquid had a sweeter taste.

• None of the above

Tags

NGSS.MS-PS1-2

A cook uses the ingredients listed below to prepare a meal.

Which table correctly shows the physical properties of these ingredients when placed in hot water?

• 
• 
• 
• 

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

A student made a mixture using equal amounts of salt and pepper. The salt grains were the same size as the pepper grains. What should the student do to most easily separate the pepper from the salt?

• Use a pair of tweezers to remove each grain of pepper

• Run a small magnet through the mixture to attract the pepper

• Put the mixture in water and filter the pepper out of the water

• Use a strainer with a fine wire screen to remove the pepper

Tags

NGSS.MS-PS1-2

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

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 adds 10 grams of four different powdered solids into four different beakers. The student then adds 100 mL of water to each beaker, stirs the mixtures, and allows them to sit for half an hour before recording observations. Which question is the student most likely trying to answer with this investigation?

• At what water temperature do the substances dissolve?

• How much water is needed to cause a substance to change state?

• What causes a substance to sink when put in water?

• Which substances dissolve in water?

Tags

NGSS.MS-PS1-2