Science Revision Exam-PY-1

________is not transparent, not letting the light to pass through the objects.

• Opaque

• transparent

Sounds pleasant and associate with music is_______

• loud

• noise

• musical sound

Sounds that are ___ db can cause permanent damage to our ears.

• 75

• 85

• 95

A_______ is the dark phenomenon made when something blocks light.

• Shadow

• light

• sky

Approximately ____ micro- nutrients are required by the body to stay sound and healthy.

• forty

• sixty

• fifty

A______ diet which contains only plant-based food.

• Lacto-vegetarian

• pescatarian

• Vegan

_______containing food can keep teeth strong and healthy.

• Sugar

• Calcium

• protein

_____is a yellow bone- like material.

• Dentine

• enamel

• pulp

The sound which can be heard and cannot be heard_______

• audible sound

• in-audible sound

The part of the earth that is facing the sun is______

• night

• day