Feel the Heat

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-PS3-4

NGSS.MS-PS3-3

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 feel warm?

• Rubbing your hands together causes a fire that can produce 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.

What example is light and heat energy?

• whistle

• rubbing hands together

• fan

• table lamp

Tags

NGSS.MS-PS4-1

Tran and Seth cut two squares of wool fabric. The boys rub their pieces of fabric together for 30 seconds. They then place a thermometer between their two pieces of fabric and measure the temperature for 30 seconds.

The before temperature was 70 degrees. The after temperature was 83 degrees.

Why did the temperature change?

• the time of year

• the temperature of the classroom

• the amount of light in the classroom

• the friction caused by rubbing the fabric together

Tags

NGSS.MS-PS3-4

NGSS.MS-PS1-4

NGSS.MS-PS3-5

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

Every day when Jack gets home from school, he puts his lunchbox on the counter. He turns on his desk lamp and gets a cup of water. He then sits at his desk with his book to do his homework. Which object produces the most heat?

• cup

• book

• lamp

• lunchbox

Liang starts doing her homework. She takes a drink of water and opens her notebook. She sees she has made a mistake and erases it with her eraser. Which object produces heat when she uses it?

• cup

• book

• eraser

• water

Bella and her mother dip strawberries in chocolate they melted over a pan of hot water on the stove. Which type of energy produced by the stove enabled them to do this?

• heat energy

• light energy

• sound energy

• gravitational energy

Tags

NGSS.MS-PS3-4

NGSS.MS-PS1-4

NGSS.MS-PS3-3

Madelyn and Charles collected data about the heights of students at a school. Madelyn wrote down the heights of 16 boys on the basketball team. Charles wrote down the heights of 16 students in a class. Madelyn says most students are 180-184 centimeters tall. Charles says most students are 170-174 centimeters tall. What could explain their different findings?

• They collected different amounts of data.

• They collected data from two different groups.

• They recorded data using different recording techniques.

• The measured height using two different kinds of measurement tools.