Page 43 - MOVING THROUGH AIR

Science Y2 – Parent Guide
Changed Rocks
Week 3

Truth to Teach (Source)

1. God uses great forces creatively as the Builder of the Earth and the universe, and these
forces act to change things. In a similar way He may take us through times of heat and
pressure in our lives, so that we are changed and purified in our faith and knowledge of
Him. (1 Peter 1:6-7)

2. Rock may be changed through heat or pressure into a harder or more beautiful type of
rock.

Way to Work (Means)

1. Recap. Some rocks are formed as melted fiery rock from the depths of the earth’s
mantle cools down. (Granite. Basalt. Pumice.)
This is a bit like a person who has got worked up inside, perhaps someone is very angry
about something. He gets red in the face and then perhaps begins to shout or stamp, as
his anger has to get out. After that, he can begin to cool down. No-one can live like that
all the time, but there are times when we will feel angry. The important thing is how to
let the anger out without hurting anybody. In a similar way there is a build up of this hot
fiery rock under the earth’s crust, and if there is a weak place in the crust, it comes
surging out. And then it begins to cool down.

Other rocks are formed under water, from the remains of little pieces of rock or dead
sea-creatures or plants, which sink to the sea-bed, and gradually get covered over and
pressed into rocks such as limestone, chalk or sandstone. Here we can see that in God’s
world the end of one thing is the start of something else. The end of rock or creatures
or plants isn’t a waste, because God uses these in His process of creating new rock!

2. Explain that there is yet another way in which rocks are being created today. It is a
little bit like baking biscuits. You know how the dough is soft when the biscuits go into
the oven, but when they come out and they are cool enough to eat, they will be crunchy.
What caused the soft biscuit to become hard? (Heat)
In a similar way, when hot lava is forced through layers of limestone, it ‘bakes’ the
limestone near it and changes limestone into this beautiful hard marble! (Show
contrasting rock samples.)
God has used heat and pressure (or squeezing) to change this once ordinary rock into
something special! Do you think it was nice for the rock?!

3. In a similar way God may allow us to experience a difficult situation, not to harm us, but
to change us. How may He want us to change? (To make us more like Jesus in some
way – more beautiful – or to make our faith stronger.) It may not be pleasant at the
time, but in it “God works for the good of those who love Him, who have been called
according to his purpose.” [Expand as appropriate.]

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