6th Grade Earth and Space Science Exam

What causes day and night cycles on Earth?

• The Earth's rotation around its axis

• The Moon's rotation around Earth

• The Earth's revolution around the Sun

• The Sun's rotation around Earth

Which of the following best explains what causes the seasons?

• The distance between Earth and the Sun

• Earth's tilt and its revolution around the Sun

• The Moon's gravitational pull on Earth

• The speed of Earth's rotation

What causes tides on Earth?

• Wind patterns across oceans

• Earth's rotation only

• The gravitational pull of the Moon and Sun

• Ocean currents

Which theory states that the Sun is at the center of our solar system?

• Geocentric theory

• Planetary theory

• Solar theory

• Heliocentric theory

What force keeps planets in orbit around the Sun?

• Magnetic force

• Gravitational force

• Electromagnetic force

• Nuclear force

How are sedimentary rocks formed?

• Through intense heat and pressure

• Through cooling of molten rock

• Through compaction and cementation of layers

• Through volcanic activity

What is the process by which rocks are broken down into smaller pieces?

• Erosion

• Weathering

• Deposition

• Crystallization

What causes tectonic plates to move?

• Wind patterns

• Ocean currents

• Convection currents in Earth's interior

• The Moon's gravitational pull

Which evidence supports the theory of plate tectonics?

• The shape of continents

• Distribution of fossils

• Seafloor spreading

• All of the above

How does the Sun's energy affect the water cycle?

• It causes evaporation

• It creates precipitation

• It powers the entire cycle

• It only affects ocean temperatures