A mother has faced court charged with the murder of her three children after they perished in a house fire in the West Australian town of Port Hedland.

A 10-year-old girl and two boys, aged seven and five months, were found dead inside the Anderson St property by firefighters who responded to the blaze on July 19.

The children are not being named for cultural reasons.

Their mother, Margaret Dale Hawke, 36, has been charged with three counts of murder and one count of criminal damage by fire.

She briefly faced Perth Magistrates Court on Tuesday but was not required to speak other than to confirm she understood the charges against her.

Hawke, who was refused police bail and is yet to enter pleas to her charges, was remanded in custody to face Stirling Gardens Magistrates Court on August 31.

Appearing in person at the hearing, she waved to a supporter in the public gallery.

Hawke was hospitalised at Hedland Health Campus after the fire before being flown to Perth for further specialist treatment.

The blaze has sent shockwaves through the community of Port Hedland, in WA's Pilbara region.

Support services are being provided in the town by government agencies.

In a statement on Friday evening, the Hawke family said it was going through a "very traumatic grief process" and asked for their privacy to be respected.

"We are quietly paying tribute to our 3 little angels, and just supporting each other at this time," they said.

"Please let us do this without adding to our grief."

© AAP 2022

Queensland Premier Annastacia Palaszczuk and Treasurer Cameron Dick will face a grilling over everything from lobbyists to coal royalties on the first day of budget estimate hearings.

After months of negative headlines surrounding allegations of bullying, external lobbyist and legal action involving former deputy premier Jackie Trad, the state government will face questions over the next two weeks about the expenditure within their portfolios.

Ms Palaszczuk is expected to be grilled over the Coaldrake report and the access and influence of lobbyists.

The premier has moved to tighten lobbying rules, but will still face intense questioning from the opposition.

Mr Dick will also be in the line of fire after handing down the state budget in June.

While boasting the budget is back in the black with a forecast $1.9 billion surplus, Mr Dick has faced criticism after announcing the first coal royalty increase in 10 years.

The tax hike came into effect on July 1 amid claims it would damage international relations and deter future investment.

Mr Dick is also likely to face questions about payroll and gambling tax increases.

Estimates hearings will kick off on Tuesday with speaker Curtis Pitt, and continue through until August 4.

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Climate change, aged care reform and domestic violence leave will mark the start of the new parliament, along with the traditional ceremonial fanfare.

Australia's 47th parliament will come to life as 151 lower house members and 76 senators descend on Canberra's Capital Hill.

A welcome to country in the Great Hall of Parliament House will kick off the first day of mostly ceremonial matters.

All parliamentarians will need to be sworn in, including 35 new lower house MPs elected on May 21.

A new Speaker of the House will need to be elected to replace Liberal MP Andrew Wallace.

Queensland Labor MP Milton Dick is expected to have the support of his colleagues to ascend to the Speaker's chair.

Before his election to federal parliament in 2016, Mr Dick was a Brisbane City councillor and Queensland Labor state secretary.

His brother Cameron is treasurer in the Queensland Labor government.

Governor-General David Hurley will address all members of parliament, outlining the priorities of the new government in the next three years.

Prime Minister Anthony Albanese said the governor-general's speech will outline his government's ambition.

"A government which sees it has a responsibility to break Australia out of the inertia that the former government was stuck in," he told his party room on Monday.

"We often came to the (last) parliament without much to do in terms of an agenda. This Labor government will not be like that and we've hit the ground running already."

Tackling the aged care, labour, climate and domestic violence crises are on the prime minister's initial legislative agenda.

Proposed aged care reforms include putting nurses into nursing homes, stopping high administration and management fees and improving the integrity and accountability of residential facilities.

Labor intends to enshrine a 43 per cent emissions-reduction target by 2030 into a law that will also require the climate minister to report annually to parliament on Australia's progress.

A proposal to introduce 10 days of paid family and domestic violence leave will be unveiled.

In the jobs and skills sector, the government will propose a new statutory body to provide independent advice on workforce needs and help tackle Australia's labour crisis.

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Queensland MP Milton Dick has been elected as the 32nd Speaker of the House of Representatives.

First elected to federal parliament in 2016, Mr Dick was formerly a Brisbane City councillor and Queensland Labor state secretary.

Mr Dick was described as a generous soul, careful listener, thoughtful and reasonable with a "prodigious memory for numbers" by his colleagues.

"I have no doubt he would earn this place's respect in his role as Speaker," Labor MP Susan Templeman said.

The opposition endorsed former speaker Andrew Wallace for the role.

Liberal MP Karen Andrews said Mr Wallace was an experienced parliamentarian and urged her colleagues and the crossbench to consider him for the role.

"I would urge the new members of parliament to consider his experience as a previous Speaker of the House," she said.

"This is in a sense the very first test of your independence ... you can consider candidates on their merits."

A secret ballot awarded the role to Mr Dick with 92 votes to Mr Wallace's 56.

Prime Minister Anthony Albanese congratulated the new Speaker on his election and thanked Mr Wallace for his service.

"One of the things I've noticed about (Mr Dick) is that people will come to you for assistance and guidance," he said.

"I'm absolutely convinced that you will be outstanding (as Speaker) as well."

The election of the Speaker was the first in a series of ceremonial features to mark the opening of Australia's 47th parliament.

It sprung to life after 151 lower house members descended on Canberra's Capital Hill.

Each was sworn in and pledged their allegiance to her majesty Queen Elizabeth II, her heirs and successors.

Among them, six new independents took their place among the 18-strong crossbench and celebrated with hugs and handshakes.

Speaking at the welcome to country ceremony earlier, Mr Albanese urged his colleagues to make the most of their time in parliament.

His government is set to hit the ground running, introducing 18 pieces of legislation in the first week.

On the prime minister's initial legislative agenda are the aged care, labour, climate and domestic violence crises.

Proposed aged care reforms include putting nurses into nursing homes, stopping high administration and management fees and improving the integrity and accountability of residential facilities.

Labor intends to enshrine a 43 per cent emissions reduction target by 2030 into a law that will also require the climate minister to report annually to parliament on Australia's progress.

A proposal to introduce 10 days of paid family and domestic violence leave will be unveiled.

In the jobs and skills sector, the government will propose a new statutory body to provide independent advice on workforce needs and help tackle Australia's labour crisis.

Governor-General David Hurley will address all members of parliament, outlining the priorities of the new government in the next three years.

Four new MPs elected on May 21 will make their first speeches to parliament in the evening.

Labor MPs Sally Sitou (Reid) and Zaneta Mascarenhas (Swan) will begin followed by Liberal MP Aaron Violi (Casey) and independent MP Zoe Daniel (Goldstein).

© AAP 2022