Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
primary 6 | Maths
One Answer Below
Anyone can contribute an answer, even non-tutors.
Help me (thx)
Date Posted: 7 years ago
Views: 352
See 1 Answer
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
The gap between the bottom of the test tube and the seeds are for the air between the seeds to expand. When the germinating seeds produce heat, the air around them heats up and expands as a result. Thus, the gap at the bottom is to accommodate the expanded air. If there was no gap, the test tube might break under the pressure of the expanding air.
Date Posted:
7 years ago
360 Tutoring Program