CREST Science Olympiad Class 7 Sample Papers

Ace in Reasoning Olympiads!

Buy Workbook

Practice with topic-wise CREST Workbook

Become a science enthusiast!


Prepare for Science Olympiads with Olympiad Success Live Classes


Section 1: Heat, Motion and Time, Electric Current and its Effects, Winds, Storms and Cyclones, Light, Acids, Bases and Salts, Physical and Chemical Changes, Weather, Climate and Adaptations of Animals to Climate, Fibre to Fabric, Nutrition in Plants and Animals, Respiration in Organisms, Transportation in Plants and Animals, Reproduction in Plants, Natural Resources and Their Conservation.

Achievers Section: Higher Order Thinking Questions - Syllabus as per Section 1

Q.1 Q.2 Q.3 Q.4 Q.5 Q.6 Q.7 Q.8 Q.9 Q.10


Rohan took two salts A and B in two test tubes I and II, respectively, and subjected them to heating. After that, he added water to the two test tubes, in test tube I salt regained its original colour and in test tube II water started boiling. Identify A and B:


Physical changes are temporary and can be easily reversed to their previous form.
Which of the following physical changes is not a reversible change?


Read the clues carefully and answer the question that follows:
Clue 1: I live in tropical rainforests.
Clue 2: I have a long and large beak.
Clue 3: I can reach for fruits on branches which are not easily reachable.
Who am I?


Name the part marked 'X' in the organism shown below:


A walker follows the path from A and E (figure) over an 80 s time interval. What total distance does the walker cover between A and E?


Two children are standing in front of a plane mirror as shown. When the child A looks into the mirror, how far away from him will image of child B appear to be?


What will be the climate of a place where there is very less rainfall and high temperature throughout the year?


Match column I with column II and select the correct option from the codes given:

Column I Column II
1. Shearing a. Washing sheared skin to remove dirt
2. Scouring b. Removal of fleece of sheep
3. Sorting c. Anthrax
4. Fatal blood disease d. Hair of different textures separated


Fill in the blanks:
1. The light material which floats during wastewater treatment is _______________.
2. _______________ is produced during wastewater treatment.
3. Wastewater from ______________ may contain radioactive materials.


Fill in the blanks:

The water which is lost through the stomata is replaced by water from the _______ vessels in the leaf. Evaporation of water molecules from leaf's cells creates a suction which pulls the water from the _______ cells of the root.

Your Score: 0/10

Sample PDF of CREST Science Olympiad for Class 7:

If your web browser doesn't have a PDF Plugin. Instead you can Click here to download the PDF

Answers to Sample Questions from CREST Olympiads:


Answers to Sample Questions from CREST Olympiads:

Q.1 : a | Q.2 : a | Q.3 : c | Q.4 : b | Q.5 : a | Q.6 : a | Q.7 : a | Q.8 : c | Q.9 : d | Q.10 : a