Happy as a sandboy!

What is the mass (weight) of a grain of sand?

Be careful - sand can get into all sorts of places!

PLAN

It is not easy to weigh a single grain - so what will you do?

Dry sand will be easier to handle than wet sand.

I WILL NEED

Sand.

Weighing device.

Paper and pencil.

I MAY NEED

Magnifying glass.

Calculator.

FAIR TEST

Perhaps you will need to carry out this investigation more than once to make sure you get a true result.

PREDICTION

Perhaps you could estimate before you start how many grains of sand make up 1 gram.

PRACTICAL ACTIVITY

What did you decide to do?

How did you carry this out?

What problems did you face?

How did you overcome these?

COLLECT

DATA

Can you find a way to make your task easier?

ANALYSE

DATA

You may need some help with the maths.

PRESENT

FINDINGS

What is the best way to show what you did?

What is the best way to explain your data and your findings?

EVALUATE

INVESTIGATION

Are you satisfied that your investigation has given you an accurate result?

What factors might affect the accuracy of your result?

How could you improve your investigation to get a more accurate result?

If you have carried out this investigation, click the icon to send in your results to Brainboxx and we may publish your work on the website.  It is best to e-mail the results of your investigation or you may need to send them by post.  Make sure you get permission from a teacher, parent or other adult before you get in touch.

SAND

MORE SAND