Emily Matthews and Sam Hennessey will read a poem at a commemorative service at Wrights Road Reserve, Kellyville, this Sunday (April 13).
Fellow ambassador Emily Greentree from Rouse Hill Anglican College will also read.
The St Bernadette's Primary School year 6 pupils were two of three 2014 Anzac Day youth ambassadors named at the launch of an education kit for primary schools at Castle Hill RSL on Wednesday.
Sam, whose great-grandfather was a soldier, said the true meaning of mateship, loyalty and Aussie character was shown to the rest of the world on Turkey's shores at Gallipoli.
"These brave soldiers should not be forgotten," he said.
"Anzac Day is a time for remembering stories of war, bravery, loss and courage.
"We can take part by joining the Anzac Day celebrations in our own community or by attending a dawn service to show respect."
Emily spoke of her great-grandfathers who served in World War II — one as a mechanical engineer who serviced aircraft and the other as a soldier in Papua New Guinea.
She also found quotes from soldiers who were honest in their assessment of war.
"The last one I think was quite realistic and it said how they felt about leaving their families behind and what they thought the outcome would be," Emily said.
It is the fifth year the RSL has made an education kit with writing, poster design, peace garden, and crack the code exercises for pupils to complete while learning about Anzac history and tradition.
Year 11 students will research the 516 soldiers from The Hills who served in the war to mark the centenary in 2015 of Australian and New Zealand soldiers first landing at Gallipoli.
The RSL will also forward to schools DVDs of an October re-enactment of soldiers departing for World War I from Western Australia.