Using a series of very technical tests, scientists from the French research facility CEA have determined that the Earth's core is roughly 6,000 degrees Celsius. That is approximately 1,000 degrees hotter than the temperature obtained by tests in the 1990s.
These new figures show that the center of the Earth is just as hot as the surface of the sun.
The experiment that supplied the new temperature used X-rays to probe tiny samples of iron at extraordinary pressures to examine how the iron crystals form and melt. The BBC reported that "To replicate the enormous pressures at the core boundary - more than a million times the pressure at sea level - they used a device called a diamond anvil cell - essentially a tiny sample held between the points of two precision-machined synthetic diamonds.
Once the team's iron samples were subjected to the high pressures and high temperatures using a laser, the scientists used X-ray beams to carry out "diffraction" - bouncing X-rays off of the nuclei of the iron atoms and watching how the pattern changed as the iron changed from solid to liquid."
“Most children are taught early on that thinking is dangerous,” (Hooks, 2010, p.8).
Please answer the following questions on a sheet of paper or mentally if you prefer:
I have always been fascinated in Amelia Earhart. Earhart was one of the first biographies I remember reading in grade school. She was such a role model as I was growing up. She showed that a woman was capable of doing anything she set her mind to doing!
Over the years I have been following Richard Gillespie’s TIGHAR (The International Group for Historic Aircraft Recovery) attempts to discover what happened to Earhart and her co-pilot, Fred Noonan, when they disappeared somewhere over...
It was on November 4, 1922, that Howard Carter uncovered the tomb of Tutankhamun!
Lord Carnarvon was bitten by a mosquito, while in Egypt and died days later. It is said that the lights in Cairo, Egypt, went out when Carnarvon died. Also, back in London, his dog is said to have...
In last week’s post, I covered the four authority bases that teachers use to influence student behavior. This week, I will further the discussion by presenting three different models of classroom discipline. By learning and understanding these three very different models, you can examine your own practices, comparing them to see where they “fall” in relationship to the models, and possibly make...
![]()
How do school communities best support teachers, students, and parents in their efforts to promote healthy, happy learners? Is learning more productive in communities that are promoting well-being for all? An OECD/PISA study...
![]()
The 2030 Agenda for Sustainable Development calls on countries to begin efforts to achieve the 17 SDGs over the next 15 years. Sustainable Development Goal No. 4 advocates for inclusive and equitable quality education and lifelong learning opportunities for all.
Youth unemployment...
As a teacher, have you ever expected students to listen to you just because you’re the teacher? They’re supposed to listen to the teacher, you think. Or maybe you expect them to pay attention because you know your content so well. You have a master’s degree in math or science instruction. You might have noticed that certain students listen and behave better for you after you began to know them better. You invited them to lunch, praised them in class then they...

Amazing Pumpkin Facts!
by Gail Skroback Hennessey
Click here for a downloadable version: https://www.teacherspayteachers.com/Product/PUMPKIN-FACTS-1482068
![]()
![]()
What can we learn from the teaching and learning practices of mathematics —...