Curriculum
Course: Science — Third Preparatory
Login

Curriculum

Science — Third Preparatory

Science — Third Preparatory

0/8

Science — Third Preparatory 2026/2027

0/4

Unit 1 - Force, Motion, Acceleration and Physical Quantities

0/1
Quiz

Question bank: Unit 4 — Dating Planet Earth

Submit quiz
Once you submit, you will no longer be able to change your answers. Are you sure you want to submit the quiz?
Cancel Submit
  • Questions count: 3
Start Quiz
1.
The half-life of a radioactive element is the time for:
all of the element to decay
half of the quantity to decay
the element to double
the rock to melt
2.
A rock sample contains 50% of the original amount of a radioactive element. How many half-lives have passed?
1
2
3
4
3.
The fraction of a radioactive element remaining after 3 half-lives is:
1/3
1/6
1/8
1/9
  • 1
  • 2
  • 3