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grade 9 science

luonut reuben piatigorsky-roth

Chapter5- Trning Effects of Forces

luonut Jacqueline Lim

Measurement and Density

luonut Cheryl Tan

Molecules & Ions

luonut munyra arsad

outer space and life

new born star

helium and hydrogen

death of a star

iron overlod

high pressure

explosion

main forces

electromagnetic

gravitational

due to realtively different masses

weak nuclear

strong nuclear

big bang

transformation of nothing into everything

start of the universe

before life

magma oceans

huge tides

lightnings

basic blocks of life

main elements

92 elements

hydrogen converted to helium

converted to large and massive elements

evidence of life from stars

elements of stars contributed in the existence of our ancestors

raw materials

elements fell from outerspace

PAH

space simulation

an experiment was conducted by having a vacuum and detecting the elements

molecules that help in creating life

elements found in space are used in biochemistry