• Type in the correct tense of the verb in the spaces.
  • Click the button at the bottom to check your answers.
  • Press the "refresh" button on your browser to play again.

have wipe analyze contain impact extract happen settle tell record
smash create trigger change hurl create fall fill analyze take
Scientists say they unearthed details of how the dinosaurs were out 65 million years ago. A team of geophysicists is rock formations in a crater under the seabed off Mexico. The rocks the remnants of the cataclysmic aftermath of a gigantic asteroid with Earth. The scientists say the layers of rock they have reveal a step-by-step account of the destruction that after the impact as rock and sediment on top of each other in revealing layers. Geophysicist Jay Melosh from Purdue University said: "It us what went on inside the crater on that day of doom that killed the dinosaurs. All of this mayhem is directly in the core."

Scientists say the asteroid was around three to four kilometers wide. It into the ocean and a hole 160kms wide and 20kms deep. This a chain reaction of earthquakes, tsunami, icecap melting, landslides and fires that forever the geology and life forms on Earth, killing off the dinosaurs. The asteroid's impact out rock and minerals and a massive crater. Molten rock back into the crater, which was then with ocean water from tidal waves. This water was full of soil, vegetation, animal life and other debris, all of which settled in layers ready for scientists to millions of years later. The scientists say this layer-forming process just a few hours.

Back to the dinosaurs lesson.

Share this lesson

More Free Sites by Sean Banville

Online Activities