1. Question: Adam held the flask for ten minutes. What happened to the ink? Explain. 2. Topic(s): Heat 3. Key words: held, ten minutes, happened to the ink, explain 4. Answer: The ink dropped initially and rose again. Heat causes expansion. The heat from the hands touched the flask via conduction (contact surface area). This caused the flask to expand first. As the air inside the flask continued to gain heat, the air expanded upon heating, causing the ink to move upwards. 5. Tip(s): Students will usually write the ink will rise immediately. However, take note that the flask will expand first, though we cannot see with our naked eyes. |
Want the other Science series on 20 science misconceptions neatly consolidated in one PDF Booklet to revise with your child before her exams?
The "20 Primary School Science Misconceptions" PDF Booklet contains 29 pages of information to dispel common Science myths that cause many children to make mistakes in their exams.
We still have another Science title in the series that you have to get - the "Top 12 Tips for Primary School Science" PDF Booklet. It reveals 12 of the most tried-and-tested Primary School Science tips in 32 colourful pages.
Both titles are available at only $2.99 each.
Get them today so that you can immediate use the tips to revise with your child.
=> http://learnsupermart.zaxaa.com/s/11095991035857
=> http://learnsupermart.zaxaa.com/s/11095921836022
Experiment #7 - Forces (Frictional Force)
Experiment #6 - Forces (Frictional Force)