ICAS Science 5

Question 1

Which gas do humans exhale in greater amounts compared to what they inhale?

Accepted Answer

Carbon dioxide

Answer

During cellular respiration, the body converts oxygen and glucose into energy, releasing carbon dioxide as a waste product that is exhaled.

Question 2

A thermometer measures temperature in degrees Celsius. If water starts to boil at 100°C, what is the equivalent in Fahrenheit?

Accepted Answer

212°F

Answer

Water boils at 100°C, which is equivalent to 212°F, using the conversion formula F = (C × 9/5) + 32.

Question 3

Fossils are most commonly found in which type of rock?

Accepted Answer

Sedimentary

Answer

Sedimentary rocks form from layers of sediment that can trap and preserve the remains of organisms, creating fossils.

Question 4

During a solar eclipse, what is happening?

Accepted Answer

The Moon passes between Earth and the Sun

Answer

A solar eclipse occurs when the Moon passes between Earth and the Sun, temporarily blocking sunlight from reaching parts of Earth's surface.

Question 5

Which characteristic do all living things share?

Accepted Answer

They are made of cells

Answer

All living organisms — from bacteria to plants to animals — are composed of one or more cells, the basic unit of life.

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