MEDIUM
7th CBSE
IMPORTANT
Earn 100

Why is constriction provided between the bulb and the stem of a clinical thermometer?

Important Questions on Heat and Temperature

EASY
7th CBSE
IMPORTANT
S. Chand's SCIENCE For Class VII>Chapter 4 - Heat and Temperature>EXERCISES>Q IX
You receive heat from a bonfire by :
EASY
7th CBSE
IMPORTANT
S. Chand's SCIENCE For Class VII>Chapter 4 - Heat and Temperature>EXERCISES>Q IX
Cooking vessels are made from
EASY
7th CBSE
IMPORTANT
S. Chand's SCIENCE For Class VII>Chapter 4 - Heat and Temperature>EXERCISES>Q IX
Conduction of heat does not take place in:
EASY
7th CBSE
IMPORTANT
S. Chand's SCIENCE For Class VII>Chapter 4 - Heat and Temperature>EXERCISES>Q IX
Heat radiations cannot pass through:
MEDIUM
7th CBSE
IMPORTANT
S. Chand's SCIENCE For Class VII>Chapter 4 - Heat and Temperature>H-O-T-S Question
Body of penguin is covered with short and black feathers on its back. Feathers on its front are white. Also, these feathers have tiny air spaces. How do these characteristics help the penguin in keeping itself warm in the snowbound region?