Science Quiz on Earth and Materials

What are the large sections of the Earth's crust called?

• Continents

• Tectonic Plates

• Layers

• Oceans

What type of natural event occurs most frequently along the edges of tectonic plates?

• Hurricanes

• Earthquakes

• Tornadoes

• Thunderstorms

The jigsaw-like appearance of continental coastlines suggests that:

• The continents were once connected

• Continents are shrinking over time

• Continents do not move at all

• Continents are becoming larger

What process is responsible for the movement of continents?

• Gravity pulling land downward

• Earth's rotation pushing continents

• Convection currents in the in the Earth's mantle

• Changes in sea levels

Which type of material is usually brittle and does not conduct electricity?

• Metal

• Non-metal

• Alloy

• Plastic

Metals are malleable. What does 'malleable' mean?

• Can be bent or hammered into shape

• Breaks easily under pressure

• Can conduct electricity

• Melts at low temperatures

What happens to most metals when they are heated?

• They expand

• They shrink

• They become brittle

• They turn into non-metals

Which of the following statements about non-metals is true?

• They are always solid at room temperature

• They are shiny

• They usually have high melting points

• They do not conduct electricity

A temperature of -50°C means:

• 50°C above freezing

• 50°C below zero

• The temperature is increasing

• It is hotter than room temperature

If the temperature is 10°C and drops by 15°C, what is the new temperature?

• 5°C

• -5°C

• -15°C

• 15°C