حل أوراق عمل HEAT في العلوم باللغة الإنجليزية للصف الرابع - الفصل الثاني (2)

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.

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

transfers heat easily، (Blank 1)، Blank 1 options، conductor insulator

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

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.

energy water

5) Convection is caused by

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.

7) Heat is the movement of

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.

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.

Describe how Emily could use this cup of water to provide evidence that supports the claim. Explain your thinking.