Which scenario best describes a scientist who is studying thermal energy?(1 point)
Responses
She works on a team, with each member performing a different role on the project.
She works on a team, with each member performing a different role on the project.
She works with a team, telling each member exactly what to do.
She works with a team, telling each member exactly what to do.
She works alone to research and carry out the project.
She works alone to research and carry out the project.
She works on a team, with each member carrying out all of the same tasks together.
The scenario "She works alone to research and carry out the project" best describes a scientist who is studying thermal energy.
What is the best description of the conclusion of a scientific investigation?(1 point)
Responses
The conclusion is the final step of the investigation before it is written.
The conclusion is the final step of the investigation before it is written.
The conclusion uses reasoning to justify the investigation.
The conclusion uses reasoning to justify the investigation.
The conclusion states that the results are correct.
The conclusion states that the results are correct.
The conclusion uses reasoning to explain and interpret the results.
The best description of the conclusion of a scientific investigation is "The conclusion uses reasoning to explain and interpret the results."
How does a heater in one corner of a fish aquarium warm the whole aquarium?(1 point)
Responses
The heater creates convection currents, which transfer warmer water away from the heater and cooler water toward the heater.
The heater creates convection currents, which transfer warmer water away from the heater and cooler water toward the heater.
The heater adds thermal energy evenly to the aquarium’s water.
The heater adds thermal energy evenly to the aquarium’s water.
The heater warms the air above the aquarium, which warms the water.
The heater warms the air above the aquarium, which warms the water.
The heater warms the glass of the aquarium, which warms the water.
The best answer is "The heater creates convection currents, which transfer warmer water away from the heater and cooler water toward the heater."
What happens when a cold spoon is placed in hot soup?(1 point)
Responses
The spoon’s molecules have less kinetic energy, so they transfer thermal energy to the soup.
The spoon’s molecules have less kinetic energy, so they transfer thermal energy to the soup.
The soup’s molecules have more potential energy, so they transfer thermal energy to the spoon.
The soup’s molecules have more potential energy, so they transfer thermal energy to the spoon.
The soup’s molecules have the same kinetic energy as the spoon’s molecules, so there is no transfer of thermal energy.
The soup’s molecules have the same kinetic energy as the spoon’s molecules, so there is no transfer of thermal energy.
The soup’s molecules have more kinetic energy, so they transfer thermal energy to the spoon.