🔬

Science (Secondary)

Physics, chemistry, and biology at the secondary level.

Sample Practice Questions

  1. Enzymes are denatured at high temperatures because:

    • they run out of substrate
    • they dissolve in water
    • their 3D shape (active site) is altered
    • they become more reactive
    Show answer

    Answer: their 3D shape (active site) is altered

  2. 'Homeostasis' refers to:

    • growth and development
    • maintaining stable internal conditions
    • the breakdown of food
    • genetic inheritance
    Show answer

    Answer: maintaining stable internal conditions

  3. What is the genotype of an organism that is homozygous dominant for trait T?

    • Tt
    • TT
    • tt
    • T0
    Show answer

    Answer: TT

  4. The process of converting light energy into chemical energy in plants is:

    • respiration
    • photosynthesis
    • fermentation
    • transpiration
    Show answer

    Answer: photosynthesis

Practise more questions →

Practice Questions

Practise ICAS questions on Science (Secondary). Answers are revealed after each question.

Start Practice →

Frequently Asked Questions

What does Science (Secondary) cover in the ICAS exam?

Physics, chemistry, and biology at the secondary level.

How can I practise ICAS Science (Secondary) questions for free?

Practise free ICAS Science (Secondary) questions with instant answers and explanations on Safe Learning for Kids — no sign-up required.