Elementary Science 5005 - Physical Science

Which of the following best describes how a small saltwater spill should by cleaned up in the elementary classroom?

• Allow the spill to spread so that the water can quickly evaporate, then sweep up the salt.
• Wipe up the spill with paper towels from the outer edge toward the center to minimize the spread of the spill.
• Add water to dilute the salt water and increase the volume of the spill to ensure all the students can help wipe up the spill.
• Use the classroom sponge to absorb the spill, then squeeze out the salt water into its original container so that it can be reused.

A battery in a circuit causes a lightbulb to glow by providing energy to which of the following in the wires of the circuit?

• Electrons
• Protons
• Heat
• Light

Tags

NGSS.MS-PS3-5

Which of the following is an example of a chemical change?

• The cooking of an egg
• The mixing of salt and pepper
• The breaking in half of a pencil
• The freezing of water in a plastic tray

Tags

NGSS.MS-PS1-2

The density of a liquid is commonly expressed using which of the following units?

• Grams
• Milliliters
• Grams per milliliter
• Pounds per square foot

Which of the following statements about weight and mass is true?

• Mass is the same as weight.
• The weight of an object on the Moon is more than its weight on Earth.
• The mass of an object on the Moon is the same as its mass on Earth.
• The mass of an object on the Moon is less than its mass on Earth.

A ball is thrown straight up about fifty meters into the air. As the ball is traveling toward Earth and returning to the person who threw it, which of the following is most likely to be true?

• The speed of the ball is increasing.
• The potential energy of the ball is increasing.
• The mass of the ball is decreasing.
• The frictional force of air resistance acting in the ball is decreasing.

Tags

NGSS.MS-PS3-5

NGSS.MS-PS2-4

NGSS.MS-PS3-1

When light passes from the air into a glass lens, the light changes direction. The phenomenon is known as

• reflection
• absorption
• refraction
• intensification

Tags

NGSS.MS-PS4-2

If a small piece of iron that has a temperature of 25 degrees Celsius is placed in a container of 1,000 g of water that has a temperature of 99 degrees Celsius, which of the following is likely to occur?

• The iron will melt if the piece is small enough.
• The temperature of the water will increase to 100 degrees Celsius and start to boil.
• Some heat will be transferred from the water to the iron.
• The temperature of the iron will decrease.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of the following statements best describes an element?

• It is very similar to a compound.
• It is the smallest known particle.
• It is a combination of different types of atoms.
• It is a pure substance consisting of one type of atom.

The tendency of an object to resist change in motion is called

• mass
• inertia
• friction
• velocity