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Junior Cycle · Junior Cycle Science

Junior Cycle Science: Scientific investigations

How often Scientific investigations comes up on the Science papers, every year it was asked, and questions to try.

CL Asked on 5 of the last 6 Common Level papers, most recently in 2025. most years

Scientific investigations, Common Level(7 marks)

Quick ones on Scientific investigations.

(a)In science, what is a hypothesis?
  1. A law that is proven true
  2. A prediction that can be tested
  3. A table of results from a test
(b)Testing how water temperature affects how fast sugar dissolves. Which is the independent variable?
  1. Volume of water used
  2. Time taken to dissolve
  3. Water temperature
(c)The dependent variable in an investigation is the variable that you?
  1. Measure
  2. Keep the same
  3. Change on purpose
Show the answers

(a) A prediction that can be tested

(b) Water temperature

(c) Measure

Your turn: Common Level questions on Scientific investigations.

Common Level

Asked on 5 of the last 6 Common Level papers, most recently in 2025. most years

Every paper, year by year

YearWhere it came up
2026Not asked
2025Q12
2024Q12, Q13, Q15
2023Q12, Q14
2022Q7, Q11
2019Q11, Q14

Links open the State Examinations Commission’s paper for that year.

More Scientific investigations questions

Scientific investigations, 2 marks

When heating a liquid in a test tube, which is a safe practice?

  1. Seal it with a stopper
  2. Hold it tightly in your bare hand
  3. Point it away from people
Show the answer

Point it away from people

Hot liquid can spit out of a test tube suddenly, so point the open end away from everyone and use a holder. A sealed tube can burst as the pressure builds up.

Scientific investigations, 2 marks

Which is an ethical issue to think about when planning an investigation?

  1. Rounding the results to one decimal place
  2. Treating living things with care
  3. Choosing the scale for a graph
Show the answer

Treating living things with care

Ethics is about right and wrong: avoiding harm to animals, plants and people, getting consent in surveys and reporting results honestly. Graph scales are about presentation.

Other Science topics

All of Junior Cycle Science