A manometer is used to measure .

If you were to measure the weight of a body on the earth and on the moon with a spring balance, you would get different results. Would the same thing happen with a beam balance?

The temperature at which a substance melts changes with pressure. Ice melts at a lower temperature if the pressure increases. Can you guess why ice skates (Figure) have a narrow base?

The straps of shoulder bags (for carrying luggage) and backpacks are broad. Can you guess why?

What determines the quality of a sound?

Sound cannot travel through _____.

The organ which helps us speak is the _____.

What is the cochlea?

The technique of using the reflection of ultrasonic vibrations to create a picture of the heart is called _____.