Grade-4 WQ (25 Dec)

What is the primary source of solar energy?

• Moon

• Earth

• Sun

• Mars

If you are facing North and turn 90 degrees to your right, you are now facing?

• East

• West

• South

• North

What is the perimeter of a square with each side measuring 4 cm?

• 16 cm

• 12 cm

• 8 cm

• 4 cm

What protects Earth from the Sun's harmful ultraviolet rays?

• Ozone Layer

• Atmosphere

• Clouds

• Trees

Solar flares are:

• Explosions on the Moon

• Explosions on the Sun

• Storms on Earth

• Lights in the night sky

A meteor is:

• A star

• A comet

• A rock from space that burns in Earth's atmosphere

• A planet

How many constellations are traditionally recognized in the night sky?

• 88

• 125

• 102

• 20

Perimeter of a triangle with sides 3 cm, 4 cm, and 5 cm is:

• 12 cm

• 9 cm

• 15 cm

• 11 cm

Comets are made mostly of:

• Rock

• Ice and dust

• Gas

• Lava

What layer of the atmosphere do we live in?

• Stratosphere

• Troposphere

• Mesosphere

• Thermosphere