High Order Thinking Skills (HOTs) - 5 - Class 5 MCQ

• Humans have 32 permanent teeth (T),
  Lightning is caused by a buildup of opposite charges in the atmosphere that eventually break down the insulating properties of the air and discharge electricity.
• frogs can breathe through their skin when underwater (T),
• the boiling point of water is 100°C at sea level (T),
• As, lightning is caused by the discharge of electricity in the atmosphere, not by friction between rain and wind (F)

The process of evaporation involves a change from liquid to gas (T),
butter is a saturated fat (T),
earthworms are beneficial for the soil (T),
and a lunar eclipse occurs when the Earth passes between the Sun and the Moon (F).
As Lunar Eclipse: Occurs When: The Earth passes between the Sun and the Moon.

Mercury is the only metal that is liquid at room temperature (T), photosynthesis occurs in the leaves of plants, not the roots (F), a giraffe’s neck has the same number of bones (seven) as a human neck (T), and diamonds are made of carbon (T).

Bees are insects (T), the human body has two lungs (F), the main gas in the air we breathe is nitrogen (T), and penguins cannot fly (F).

Water expands when it freezes (T), the speed of light is faster than the speed of sound (T), sugar is a simple carbohydrate, not a complex one (F), and the Nile River is the longest river in the world, not the Amazon (F).

Camels store fat, not water, in their humps (F), spiders have eight legs (F), an electric bulb converts electrical energy into light energy (T), and sound cannot travel through a vacuum as it needs a medium to propagate (F).

• Granite is an igneous rock.
• Marble is a metamorphic rock.
• Sandstone is a sedimentary rock.
• Quartzite is hard and durable.
• Limestone is soft and crumbly.