حل أوراق عمل HEAT العلوم المتكاملة الصف الرابع

4 مارس، 2024

66 2 دقائق

Answer Key with Questions
Lesson Check: Heat

1) A farmer needed to keep his baby chicks warm. He placed a light in their cage. Which sentence best explains the farmer’s thinking of placing a light in the cage?

The farmer thought the light would transfer thermal energy to the chicks’ cage.
The farmer thought that the chicks would be healthier if they were not in the dark.
The farmer thought that the chicks would eat more to stay warm if they can see their food.
The farmer thought that the light would encourage the chicks to huddle together to keep themselves warm.

Correct Answer

The farmer thought the light would transfer thermal energy to the chicks’ cage.

2) Fill in the blanks using the available answer choices
A ………………………….. transfers heat easily

Blank 1 options

conductor
insulator

Correct Answer
conductor

Answer Key with Questions
Lesson Check: Heat

3) You are watching ﬁreworks on the fourth of July. When the ﬁreworks are set oﬀ, they give oﬀ three forms of energy. Which three forms of energy are given oﬀ?

light, sound, electrical
light, sound, heat
sound, electrical, mechanical
heat, mechanical, electrical

Correct Answer
light, sound, heat

4) Fill in the blanks using the available answer choices.

Danny did an experiment where he observed that a hot pan is best held by a dry oven mitt. When the oven mitt was wet, the hot pan almost burned Danny’s hand. This is an example of ……………………. being transferred by heat.

Blank 1 options

energy
water

Correct Answer
energy

Answer Key with Questions
Lesson Check: Heat

5)………………….. Convection is caused by

Correct Answer
Answers may vary.

Explanation
Sample answer: Convection is caused by cool parts sinking and pushing warmer parts up into the liquid or gas. As the warm and cool parts move, they cause rotating currents.

Answer Key with Questions
Lesson Check: Heat

6) In the image below, what evidence can you gather to prove that energy is being transferred?

The smoke shows that the grill is transferring heat energy to cook the food.
The smoke shows that the grill is transferring sound energy to cook the food.
The smoke shows that the grill is transferring electrical energy to cook the food.
The smoke shows that the grill is transferring mechanical energy to cook the food.

Correct Answer
The smoke shows that the grill is transferring heat energy to cook the food.

Answer Key with Questions
Lesson Check: Heat

7)…………………..Heat is the movement of

Correct Answer

Answers may vary.

Explanation
Sample answer: Heat is the movement of energy from a warmer object to a cooler object.

Answer Key with Questions
Lesson Check: Heat

8) It is very hot outside and you walk barefoot on hot pavement. Predict what will happen in this scenario.

The transfer of heat energy from the pavement will cause your feet to feel hot.
The transfer of light energy from the pavement will cause your feet to feel hot.
The transfer of light energy from the pavement will cause your feet to feel cold.
The transfer of heat energy from the pavement will cause your feet to feel cold.

Correct Answer
The transfer of heat energy from the pavement will cause your feet to feel hot.

Answer Key with Questions
Lesson Check: Heat

9) Emily investigates the claim that light carries energy from one place to another. She places a cup of water next to a window. The water is the same temperature as the air in the room. Sunlight is shining on the cup, as shown.