Maths Challenge Week 3

In a running race there are 5 runners competing. How many possible combinations for 1st, 2nd and third are there?

Extension - How many combinations are possible if there are ten runners?

SCIENCE EXPERIMENT

Here is an experiment that comes from the CSIRO website.(Thank you) Be a scientist and try it out. When you have done the experiment, on our blog, describe what happened and try to explain why you got the results you did. (Please do not go to the CSIRO website to get your answer. Use your own knowledge or ther websites to help you. Remember, the explanation is to be in your own words.)

There will only be a prize for Year 4 Holy Family students if I get a really good answer to this experiment.

What you need

To do this experiment you will need

• a saucer
• milk
• food colouring (four different colours)
• detergent.

What to do

1. Fill the saucer with milk.
2. Add one drop of each food colour to the milk at a different position around the edge of the saucer.
3. Add one drop of detergent into the centre of the saucer
   

MATHEMATICS CHALLENGE

HERE IS YOUR MATHEMATICS CHALLENGE FOR THE SECOND WEEK OF THE HOLIDAYS

This challenge will finish on Wednesday 8th October at 5.00pm. There will be a prize for the first Year 4 Holy Family child who answers the problem correctly.

Mary and her family are holding a street party for New Years Eve. They are going to make one long banquet table down the middle of the street by joining together square tables that seat four people. How many square tables will Mary need if ten people come to the party. How many tables will she need if
30 people come?
50 people come?
100 people come?

To win the prize you must give an explanation of how you achieved your answers.

Remember: Think carefully as the answers are not as simple as they seem. You may make a subsequent post if you change your mind about the answer.