maths

We are trying to find the value of pi measured 4 different circular shapes

Shape	Circumference	Diameter	c/d
1	500mm	196mm	2.801
2	490mm	165mm	2..96
3	320mm	107mm	2.99
4	330mm	70mm	3.66

Average= 2.801+2.96+2.99+3.664
=3.102

GRaphics

Volcanic Model

Volcanic Model

Model 1

A Volcano is a piece of the Earth that allows hot lava, volcanic ash and gases to escape from a magma chamber below the Earth. The Earths Volcanoes take place because the Earths crust is split into 17 undecidable tectonic plates that float on a hotter, softer layer in it's mantle. Scientists have put the categories of the volcanoes into three main stages, active, dormant and extinct. An active volcano is when a volcano has just erupted and will soon erupt again. A dormant volcano is when a volcano hasn't erupted in a long time, but still has the possibility of erupting again, so it's technically sleeping. A extinct volcano is when the volcano erupted thousands of years ago and there's no possibility of it erupting again.Most new Zealand volcanoes are dormant.

    

Volcanic experiment

Vinegar 

First you put some vinegar into the test tube and you have to pour it up to 7 milliliters

Food coloring

after that you have to put just a drop of food coloring which is the red stuff on the picture

Baking soda 

after that you have to keep putting in some baking soda until it rises up to the top

Objects you use

• Test tube
• Beaker
• Eyedropper
• plastic spoon 

• A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. Earth's volcanoes occur because its crust is broken into 17 major, rigid tectonic plates that float on a hotter, softer layer in its mantle. 

Volcanic erruption

today we were working on science and we were doing a science experiment