Which planet is called the Red Planet?
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MARS — Mars appears red because of iron oxide.
Science and body word puzzles
Last updated: 30/10/2026
These clues cover the body, space and the natural world. They are a good mix of familiar facts and useful vocabulary.
60 questions with answers and short explanations.
Questions
Which gas do we breathe in to live?
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OXYGEN — We need oxygen to live.
Which organ pumps blood?
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HEART — The heart pumps blood around the body.
Which organs help us breathe?
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LUNGS — Lungs exchange oxygen and carbon dioxide.
Which body part do we see with?
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EYES — We see with our eyes.
Which body part do we hear with?
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EARS — We hear with our ears.
Which body part do we smell with?
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NOSE — We smell with our nose.
Which body part do we taste with?
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TONGUE — We taste with our tongue.
Which metal conducts electricity best?
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SILVER — Silver is the best conductor among common metals.
Which metal is liquid at room temperature?
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MERCURY — Mercury is liquid at room temperature.
Which planet is farthest from the Sun?
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NEPTUNE — Neptune is the farthest planet from the Sun.
Which planet is tilted about 98 degrees?
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URANUS — Uranus has an axial tilt of about 98 degrees.
What is the SI unit of pressure?
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PASCAL — The pascal (Pa) is the SI unit of pressure.
What is the SI unit of frequency?
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HERTZ — The hertz (Hz) is the SI unit of frequency.
Which metal has the chemical symbol Fe?
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IRON — Iron has the chemical symbol Fe.
Which metal has the chemical symbol Au?
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GOLD — Gold has the chemical symbol Au.
Which organ produces insulin?
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PANCREAS — The pancreas produces insulin.
Which sugar is found in RNA?
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RIBOSE — RNA contains the sugar ribose.
Which strait connects the Mediterranean Sea to the Atlantic Ocean?
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GIBRALTAR — The Strait of Gibraltar connects them.
Which canal connects the Mediterranean Sea to the Red Sea?
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SUEZ — The Suez Canal connects the Mediterranean and Red Seas.
Which organ filters toxins and makes bile?
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LIVER — The liver filters toxins and makes bile.
Which organ absorbs nutrients?
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INTESTINE — The intestine absorbs nutrients.
Which organ digests food?
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STOMACH — The stomach digests food.
What is the place where two bones meet called?
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JOINT — A joint is where two bones meet.
Which bone structure protects the brain?
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SKULL — The skull protects the brain.
Which body part connects the head to the body?
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NECK — The neck connects the head to the body.
Which body part connects the arm to the body?
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SHOULDER — The shoulder connects the arm to the body.
Which body part contains the brain?
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HEAD — The head contains the brain.
Which body part is used for walking?
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LEG — Legs are used for walking.
Which body part is used for grasping?
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ARM — Arms are used for grasping.
What is Saturn's largest moon?
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TITAN — Titan is Saturn's largest moon.
Which icy moon of Jupiter may have a subsurface ocean?
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EUROPA — Europa may have an ocean beneath its ice.
Which dwarf planet was once called the ninth planet?
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PLUTO — Pluto was once considered the ninth planet.
Which dwarf planet is the largest object in the asteroid belt?
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CERES — Ceres is the largest object in the asteroid belt.
Which comet returns about every 76 years?
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HALLEY — Halley's Comet returns about every 76 years.
Which constellation has three stars forming a belt?
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ORION — Orion has a famous three-star belt.
Which star is the brightest in the night sky?
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SIRIUS — Sirius is the brightest star in the night sky.
What is the North Star also called?
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POLARIS — The North Star is also called Polaris.
Which mountain range is the longest in the world?
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ANDES — The Andes is the longest mountain range.
Which is the largest tropical rainforest?
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AMAZON — The Amazon is the largest tropical rainforest.
Which organ filters red blood cells and stores white blood cells?
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SPLEEN — The spleen filters blood cells.
Which bones protect the heart and lungs?
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RIB — Ribs protect the heart and lungs.
What is the back part of the foot called?
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HEEL — The heel is the back of the foot.
Which joint connects the upper arm to the forearm?
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ELBOW — The elbow connects the arm and forearm.
Which body part contains the heart and lungs?
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CHEST — The chest contains the heart and lungs.
What is the path of a planet around the Sun called?
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ORBIT — An orbit is a path around a body.
Which force keeps planets in orbit around the Sun?
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GRAVITY — Gravity keeps planets in orbit.
What is it called when the Moon blocks the Sun?
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ECLIPSE — That is a solar eclipse.
What is a bright streak of a space rock burning in the atmosphere called?
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METEOR — A meteor is a bright streak in the sky.
What is the event when day and night are nearly equal called?
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EQUINOX — An equinox has nearly equal day and night.
What is the rhythmic beat felt at the wrist called?
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PULSE — The pulse is felt at the wrist.
Which air-filled cavity is found in facial bones?
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SINUS — Sinuses are air-filled cavities in facial bones.
What is an abnormally high body temperature called?
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FEVER — A fever is a high body temperature.
Which bone structure supports the abdominal organs?
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PELVIS — The pelvis supports abdominal organs.
What is an open sore on skin or a mucous membrane called?
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ULCER — An ulcer is an open sore.
Which icy body grows a tail near the Sun?
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COMET — A comet grows a tail near the Sun.
What orbits the Sun and does not produce its own light?
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PLANET — A planet orbits the Sun.
What is a huge system of stars, gas and dust called?
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GALAXY — A galaxy contains stars, gas and dust.
What is a cloud of gas and dust in space called?
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NEBULA — A nebula is a cloud of gas and dust.
What is an extremely bright object at the centre of a distant galaxy?
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QUASAR — A quasar is an extremely bright galactic core.
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