3rd Grade - Feel the Heat (Heat Energy)

Nolan picks up a book from his desk and hands it to his teacher. His teacher sets the book down and slides it across a table. Which action produces the most heat?

• sliding the book across a table

• handing the book to his teacher

• setting the book down on a table

• picking the book up from his desk

Tags

NGSS.MS-PS1-4

When your hands feel cold, it can help to rub them together very quickly. This can make your hands feel warm. Why does rubbing your hands together make them warm?

• Rubbing your hands together can cause a fire that produces heat.

• Moving your body can cause your heart rate to speed up and warms the blood.

• Rubbing your hands together causes friction which can produce heat.

• Rubbing your hands together causes energy which produces heat.

Tags

NGSS.MS-PS3-5

A light bulb in the table lamp goes out. Carrie quickly replaces it and burns her fingers when removing the light bulb. Why does this happen?

• A light bulb reflects light, which causes her fingers to burn.

• A light bulb absorbs heat from the air.

• A light bulb produces light and also gives off heat.

• A light bulb still has electricity running through it which causes heat.

Several students in a class measured the temperature in different places around the school at 10:00 a.m. The results are shown in the table. What variable below BEST explains why the temperatures are different?

• Some of the thermometers did not work well.

• Temperature is difficult for students to measure.

• Some of the thermometers were placed in shaded areas and some in sunny areas.

• Temperature is often different if the thermometer is moved just a few feet away.

Mitch read that rubbing skin on skin creates more friction than rubbing skin on paper. How could he best test this?

• He could rub his hands on a doorknob, then on paper.

• He could rub his hands together, then on a piece of paper on a table.

• He could rub two pieces of paper together.

• He could rub his hands together inside his classroom, then outside.

Kayla’s family is cooking lunch on an outdoor grill. Which items are giving off both light and heat?

• the coals and the air

• the food and the flames

• the grill and the food

• the coals and the flames