Articles - 'a', 'an' and 'the'


  • Choose the missing articles (a, an or the) in the spaces.
  • Click the button at the bottom to check your answers.
  • Press the "refresh" button on your browser to play again.

   a      a      a      a      a      a      A      a      a      a      an      the      the      the      the      the      the      the  
Scientists have developed tiny camera that can be put on back of beetle. The camera can record where bug goes. This will give the scientists bug's-eye view of the world. The researchers want to use the camera to explore places never seen before. Researcher Vikram Iyer explained why the camera could be useful. He said: "Insects can traverse rocky environments, which is really challenging for robots to do at this scale. So this system can also help us out by letting us see or collect samples from hard-to-navigate spaces." Mr Iyer is excited to see what cameras record. He said: "This is first time that we've had first-person view from the back of beetle while it's walking around."

The scientists are from University of Washington in the USA. They wanted to develop camera light enough for bugs to wear. It weighs just 250 grams. Their wireless camera records images at up to five frames per second. researcher said: "We have created low-power, low-weight, wireless camera system that can capture first-person view of what's happening from actual live insect." He said one of the biggest challenges when making the camera was battery. It had to be very small and very light, with enough power to last few hours. The researchers stressed that no beetles were hurt in their tests and that all insects "lived for at least a year" after the experiments finished.

Back to the beetle camera lesson.

Share this lesson

More Free Sites by Sean Banville

Online Activities