True of False Question: Platelets help the blood to thicken?
True False
True: They help blood to clot (thicken) Platelets are cell fragments that clot to form a plug at a wound site.
True of False Question: Oxygen is element number one on the periodic table?
True False
False: Hydrogen is element number one; oxygen is number eight Hydrogen sits at the top of the periodic table with one proton.
True of False Question: The longest bone in the human body is the femur?
True False
True: The femur (thigh bone) is the longest bone in the human body It can account for about a quarter of a person's height.
True of False Question: A sepal, pistil and stamen all parts of a tree?
True False
False: Sepals, pistils and stamens are parts of a flower, not a tree Sepal = leaf-like outer layer, pistil = female reproductive part, stamen = male reproductive part.
True of False Question: Thomas Edison invented the first practical incandescent light bulb?
True False
True: Thomas Edison perfected the first commercially practical incandescent bulb in 1879 His carbonised bamboo filament lasted over 1,200 hours.
True of False Question: AC means Alternating Current?
True False
True: AC stands for Alternating Current AC current changes direction periodically; DC flows in one direction only.
True of False Question: Humans have 13 pairs of ribs?
True False
False: Humans have 12 pairs of ribs, not 13 Very occasionally a person has an extra cervical rib; twelve pairs is the norm.
True of False Question: Protons, neutrons and electrons make up an atom?
True False
True: Atoms consist of protons, neutrons and electrons Protons and neutrons form the nucleus; electrons orbit it in shells.
True of False Question: The first visible colour in a rainbow (the first colour at the top) is green?
True False
False: Red is the first visible colour at the top of a rainbow The rainbow sequence from outer edge inward: red, orange, yellow, green, blue, indigo, violet.
True of False Question: The three elements required to ignite a fire are heat, oxygen and fuel?
True False
True: Heat, oxygen and fuel Known as the 'fire triangle' — remove any one element and fire cannot sustain.
True of False Question: The moon 'Titan' orbits Planet Jupiter?
True False
False: Titan orbits Saturn, not Jupiter Titan is Saturn's largest moon and the second-largest in the solar system.
True of False Question: There are 10 more teeth in a complete set of adult teeth than a set of deciduous teeth (milk teeth)?
True False
False: There are 12 more in an adult set A full adult set is 32 teeth; a full child set (deciduous) is 20 — a gap of 12.
True of False Question: The smallest of the eight official planets in our solar system is Mercury?
True False
True: Mercury is the smallest of the eight planets in our solar system Diameter about 4,880 km — barely larger than Earth's Moon.
True of False Question: The distance travelled divided by the time taken is the formula used for working out speed?
True False
True: Speed Speed = distance ÷ time; in SI units, metres per second (m/s).
True of False Question: The only body organ able to regenerate itself is the heart?
True False
False: The liver — not the heart — is the main organ that regenerates The liver can regrow from as little as 25% of its original mass.
True of False Question: John Pemberton was a pharmacist who invented coca cola?
True False
True: Coca Cola was invented by John Pemberton Pemberton formulated Coca-Cola as a patent medicine in Atlanta, 1886.
True of False Question: The chemical symbol for Magnesium on the period table is M?
True False
False: It's Mg Mg comes from Latin 'magnesium' — some elements use two-letter symbols to avoid clashes.
True of False Question: The chemical formula H2SO4 is for Sulfuric Acid?
True False
True: Sulphuric Acid H₂SO₄ — two hydrogens, one sulfur, four oxygens. Widely used in industry and car batteries.
True of False Question: Helium is a colourless, odourless gas?
True False
True: Helium is a colourless, odourless noble gas Element number 2; the second-most abundant element in the universe after hydrogen.
True of False Question: The four main blood groups are known as C, A, B, AB?
True False
False: The four main groups are O, A, B, AB The ABO system: A, B, AB and O — plus Rh positive/negative. No blood group C exists.
