Car

A craftsman in Botswana made this model car completely out of old coat hangers and bits of wire. Estimate how many coat hangers the car is made out of, and the length scale factor of the model car to the original one.

 

Snail

Snails come in all shapes and sizes, though not normally as large as this one. Estimate the volume of air in this inflatable snail.

 

Party Hat

Party Time!!!

…but what is the volume of this hat?  Give your answers in cm³

 

Frog

Ribbit, ribbit, ribbit.

The African Tree Frog is one of the largest kinds of frog in the world. It has an average length of 66cm. Estimate how much it weighs.

 

Maths Ball

Wow! It changes size!

How many pieces of plastic make up this ball?

 

 

Silvery Things

I don’t know what these are either. I also don’t know how many I could fit into this room. Can you estimate the answer for me?

 

 

Cube

If an ant starts crawling from point A to point B  and visits every corner of this solid at least once on its way, what is the shortest distance it will travel?

Parasol

This will keep you cool on a sunny day, but in case you get thirsty I want to know how much water you could fit in it if you turned it upside down.  Give the answer in cm³.

 

 

Robot

If I turn the handle 50 times how much shorter would a pencil become?

 

 

 

 

Torch

Set the torch to “blink”

How long would it take for 1,000 blinks?  Give your answer in munites.

 

 

 

The memo pad

 

What a nice shaped memo pad.  Shame I don’t use it much.  How many sheets are there?

 

 

 

 

 

 

The Tie

 

Not the most imaginative of ties, I must say.  Do you know how many spots it has on it?

 

 

 

 

The silk sleeping bag

 

Cool, comfortable and big.  What do you think is the area of silk that made this one?  You cannot open it!  Give your answer in m². 

 

 

 

Alien

 

Bang the alien's head on a table!  Cute isn't it?  From how far away (and I tested this with a group of students) can it be heard across a field?

Trophy

 

It looks like the Year 9's have been playing football with this.  How much do you think it weighs?

 

 

 

 

Weird star shape

 

This Christmas star/box was made by a year 8 student.  They tried to make the volume as close to 2,000cm² as possible.  What I want to know is the total of all it's edges, faces and vertices added together.