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==Key Stage 3=====Meaning===A [[gram]] (g) is a [[unit]] used to measure [[measuremass]] . ===About Grams===: [[massGram]]s are shortened to a lower case '''g'''. : [[Gram]]s are 1000 x smaller than the scientific [[SI unit]] of [[mass]]; the [[kilogram]].: There is 0.001kg in one [[gram]].: The [[mass]] of an apple is around 100 [[gram]]s. ===Converting to Grams==={| class="wikitable"|-| style="height:20px; width:200px; text-align:center;" |'''Unit'''| style="height:20px; width:200px; text-align:center;" |'''To convert'''| style="height:20px; width:200px; text-align:center;" |'''Grams'''|-| style="height:20px; width:200px; text-align:center;" |1 megagram (1Mg)| style="height:20px; width:200px; text-align:center;" |Convert to [[gram]]s x1000,000.| style="height:20px; width:200px; text-align:center;" |1000,000g|-| style="height:20px; width:200px; text-align:center;" |1 [[kilogram]] (1kg)| style="height:20px; width:200px; text-align:center;" |Convert to [[gram]]s x1000.| style="height:20px; width:200px; text-align:center;" |1000g|-| style="height:20px; width:200px; text-align:center;" |1 gram (1g)| style="height:20px; width:200px; text-align:center;" |Convert to [[gram]]s x1.| style="height:20px; width:200px; text-align:center;" |1g|-| style="height:20px; width:200px; text-align:center;" |1 milligram 1(mg)| style="height:20px; width:200px; text-align:center;" |Convert to [[gram]]s /1000.| style="height:20px; width:200px; text-align:center;" |0.001kg|-| style="height:20px; width:200px; text-align:center;" |1 microgram 1(µg)| style="height:20px; width:200px; text-align:center;" |Convert to [[gram]]s /1000,000.| style="height:20px; width:200px; text-align:center;" |0.000001kg|} ==Key Stage 4=====Meaning===A [[gram]] (g) is a [[unit]] of [[mass]] which is 1000 times smaller than the [[SI Unit]] the [[kilogram]]. ===About Grams===: [[Gram]]s are shortened to a lower case '''g'''.: A [[gram]] is 10^-3kg.: The [[mass]] of an apple is around 100 [[gram]]s. ===Converting to Tons==={| class="wikitable"|-| style="height:20px; width:200px; text-align:center;" |'''Unit'''| style="height:20px; width:200px; text-align:center;" |'''To convert'''| style="height:20px; width:200px; text-align:center;" |'''Grams'''|-| style="height:20px; width:200px; text-align:center;" |1 megagram (1Mg)| style="height:20px; width:200px; text-align:center;" |Convert to '''grams''' x10⁶| style="height:20px; width:200px; text-align:center;" |1x10⁶g|-| style="height:20px; width:200px; text-align:center;" |1 [[kilogram]] (1kg)| style="height:20px; width:200px; text-align:center;" |Convert to '''grams''' x10³.| style="height:20px; width:200px; text-align:center;" |1x10³g|-| style="height:20px; width:200px; text-align:center;" |1 gram (1g)| style="height:20px; width:200px; text-align:center;" |Convert to '''grams''' x1.| style="height:20px; width:200px; text-align:center;" |1g|-| style="height:20px; width:200px; text-align:center;" |1 milligram 1(mg)| style="height:20px; width:200px; text-align:center;" |Convert to '''grams''' x10^-3.| style="height:20px; width:200px; text-align:center;" |1x10^-3g|-| style="height:20px; width:200px; text-align:center;" |1 microgram 1(µg)| style="height:20px; width:200px; text-align:center;" |Convert to '''grams''' x10^-6.| style="height:20px; width:200px; text-align:center;" |1x10^-6g|}