SCIENCE GRADE 6 NAT REVIEWER

What is the process by which plants make their own food?
- A) Respiration
- B) Photosynthesis
- C) Digestion
- D) Transpiration
Which of the following is NOT a renewable resource?
- A) Solar energy
- B) Wind energy
- C) Coal
- D) Water
What do you call the movement of the Earth that causes day and night?
- A) Revolution
- B) Rotation
- C) Orbiting
- D) Tilting
Which body system is responsible for transporting nutrients and oxygen throughout the body?
- A) Digestive system
- B) Circulatory system
- C) Respiratory system
- D) Nervous system
What type of habitat is characterized by very low temperatures and little vegetation?

What is the process by which plants make their own food?
- A) Respiration
- B) Photosynthesis
- C) Digestion
- D) Transpiration
Which of the following is NOT a renewable resource?
- A) Solar energy
- B) Wind energy
- C) Coal
- D) Water
What do you call the movement of the Earth that causes day and night?
- A) Revolution
- B) Rotation
- C) Orbiting
- D) Tilting
Which body system is responsible for transporting nutrients and oxygen throughout the body?
- A) Digestive system
- B) Circulatory system
- C) Respiratory system
- D) Nervous system
What type of habitat is characterized by very low temperatures and little vegetation?

Which of the following is not a function of the skeletal system?
- A) Support the body
- B) Protect internal organs
- C) Produce blood cells
- D) Generate heat
What is the main gas found in the air we exhale?
- A) Oxygen
- B) Nitrogen
- C) Carbon dioxide
- D) Argon
Which of these is a renewable energy source?
- A) Oil
- B) Natural gas
- C) Biomass
- D) Coal
What do you call the point on the Earth’s surface directly above the focus of an earthquake?
- A) Epicenter
- B) Hypocenter
- C) Seismograph
- D) Fault line
Which of the following is a physical change?
- A) Burning wood
- B) Rusting iron
- C) Melting ice
- D) Cooking an egg
What is the unit of measure for force?
- A) Joule
- B) Newton
- C) Watt
- D) Pascal
Which planet is known as the ‘Red Planet’?
- A) Venus
- B) Mars
- C) Jupiter
- D) Saturn
What type of animal is an amphibian?
- A) Lives only on land
- B) Lives only in water
- C) Lives both on land and in water
- D) Flies in the air
Which of these is a chemical change?
- A) Dissolving sugar in water
- B) Cutting paper
- C) Baking a cake
- D) Freezing water
What is the process by which liquid water becomes water vapor?

- A) Crust
- B) Mantle
- C) Outer core
- D) Inner core
What is the main source of energy for the Earth’s climate system?
- A) The Moon
- B) Wind
- C) The Sun
- D) Geothermal heat
Which of these is a sign of a chemical reaction?
- A) Ice melting
- B) Water boiling
- C) Sugar dissolving
- D) Gas production
What is the term for the variety of life in the world or in a particular habitat or ecosystem?
- A) Ecology
- B) Biodiversity
- C) Conservation
- D) Environment
Which of the following is responsible for the seasons on Earth?
- A) The Earth’s rotation on its axis
- B) The Earth’s revolution around the Sun
- C) The Moon’s orbit around the Earth
- D) The Sun’s rotation on its axis
What is the process by which water vapor turns into liquid water?
- A) Evaporation
- B) Condensation
- C) Precipitation
- D) Sublimation
Which of the following is not a part of the water cycle?
- A) Evaporation
- B) Condensation
- C) Photosynthesis
- D) Precipitation
What do you call the first link in the food chain?
- A) Decomposers
- B) Consumers
- C) Producers
- D) Predators
Which of the following is a non-contact force?
- A) Friction
- B) Tension
- C) Gravity
- D) Air resistance
What type of rock is formed from the cooling and solidification of magma or lava?