True or False Questions About Science

Chemistry, physics and the human body: everyday science full of surprises and convincing myths.

▶Play this topic7 questions · ~1 min

Guess first, then tap a statement to see the answer.

1. Gold has the chemical symbol Au.

   True

   The symbol Au comes from the Latin word 'Aurum'.

2. Photosynthesis occurs using energy from the Sun.

   True

   Plants convert light energy into chemical energy, producing organic compounds.

3. An echo is caused by the refraction of sound waves.

   Lie

   An echo is produced by the reflection of sound waves from surfaces.

4. An electromagnet can lose its magnetism when the current is switched off.

   True

   An electromagnet's field is created by electric current and disappears when the current stops.

5. Human DNA is found in almost every cell of the body.

   True

   Most cells contain the same DNA, though some, such as red blood cells, lack a nucleus.

6. The most abundant element in the Universe is oxygen.

   Lie

   Hydrogen is the most abundant element in the Universe, followed by helium.

7. Light always travels faster in water than in a vacuum.

   Lie

   Light travels fastest in a vacuum. It moves more slowly through water.

8. Every even number is the square of an integer.

   Lie

   For example, 6 is even but is not the square of any integer.

9. Penicillin was discovered by Alexander Fleming.

   True

   Fleming discovered penicillin in 1928, revolutionizing medicine.

10. All fungi obtain energy through photosynthesis.

    Lie

    Fungi do not photosynthesize. They obtain nutrients from organic matter.

11. Antibiotics do not work against viruses.

    True

    Antibiotics treat bacterial infections, not viral ones.

12. Viruses can reproduce on their own without cells.

    Lie

    Viruses require living host cells to reproduce.

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