My Second STEM Session

Yesterday me and  my sister went to a STEM session. We were looking at how fossils and how bugs get stuck in Amber and I met my friend Kara and  we put a plastic bug in a half  full cup and we
put  the last three layers on .

 Metamorphic rocks are formed under the surface of the earth from the metamorphosis (change) that occurs due to intense heat and pressure (squeezing). The rocks that result from these processes often have ribbonlike layers and may have shiny crystals, formed by minerals growing slowly over time, on their surface. Examples of this rock type include gneiss and marble.

 Igneous rocks are formed when magma (molten rock deep within the earth) cools and hardens. Sometimes the magma cools inside the earth, and other times it erupts onto the surface from volcanoes (in this case, it is called lava). When lava cools very quickly, no crystals form and the rock looks shiny and glasslike. Sometimes gas bubbles are trapped in the rock during the cooling process, leaving tiny holes and spaces in the rock. Examples of this rock type include basalt and obsidian.

Sedimentary rocks are formed from particles of sand, shells, pebbles, and other fragments of material. Together, all these particles are called sediment. Gradually, the sediment accumulates in layers and over a long period of time hardens into rock. Generally, sedimentary rock is fairly soft and may break apart or crumble easily. You can often see sand, pebbles, or stones in the rock, and it is usually the only type that contains fossils. Examples of this rock type include conglomerate and limestone.

My First Stem Session

a compel of days ago  I went to a stem session and made goo and learnt about polymers  I made a new friend called Kara  we lit a 20  pond note on fire it burst in to  flames and there were no ashes then we made goo my one is green with red glitter

HOW TO MAKE SLIME (GOO).

1. put 6 spoons of glue in

 2 put 5 spoons of  food  colouring in

 3. mix for 10 minis and add some borax in be tween 

me and Kara built a Tran station it was so big I built the Tran and put a person in it Kara built the  station .  I like my new friend .we put a tablet into water and the water trend ed and and we put salt in water and it just  sank to  the bottom then we put  a orby in a glass cup and it got bigger

Polymers are very large molecules made when many smaller molecules join together, end to end          the smaller molecules are called monomers in general ; lots of  monomers  molecules a polymers molecule. the  polymers formed are called addition  polymers.