Sea Level
Well, here's a pretty scene, the
underwater creatures and the tall lighthouse joined by a seagull
and a cloud in the sky.
There are black markings all the way
up the lighthouse and on the support for the lighthouse going down
to the sea bed. These markings are $1$ metre apart. I have left the
numbering for you to do.
The sea level is of course "$0$" and
then positive numbers going up and negative numbers going down to
the sea bed.
If we think about the mouths of the
creatures then we can see how much deeper they are from each other,
or what distance they are apart.
For example the (mouth of) the fierce
looking blue and white fish near the middle is $1$ metre deeper
than the (mouth of) the golden yellow fish.
1. What number should be where the light shines from the
lighthouse?
2. What number should be where the (head of the) seagull
is?
3. What number should be where the (mouth of the) red crab,
near the bottom, is?
4. How far is it down from the (head of the) seagull to the
(mouth of the) yellow fish?
5. How far is it from the turtle, near the surface of the
water, to the crab?
6. There's a little brown sea-horse to the right of the
lighthouse support. How far from the surface is it?
7. How high above the sea level is the seagull flying?
8. How far is the seagull from the sea-horse?
9. How high is the pointed end of the cloud?
It would be interesting to know how you arrived at your
answers.
Did you write anything down to help you?
How about thinking up some questions of your own? Please do
send them in - we would like to see your creative juices at
work!
