Ice melts when it is heated, turning into liquid water. If the water is heated more, it boils and turns into a gas called water vapour. What does water turn into when it boils?
- AWater vapour
- BIce
- CLiquid oil
- DSea salt crystals
Ice melts when it is heated, turning into liquid water. If the water is heated more, it boils and turns into a gas called water vapour. What does water turn into when it boils?
Bicycle helmets reduce the risk of serious head injury in a crash. A helmet should sit level on the head and fit snugly, with the strap fastened under the chin. How should a helmet sit on the head?
Elephants use their trunks for many tasks. They breathe and smell through them, pick up food, drink water and even greet other elephants. What is the main idea of the passage?
Grace wanted a dog, but her apartment did not allow pets. She began volunteering at an animal shelter on weekends, walking and feeding the dogs. What can you infer about why Grace volunteered?
“The storm knocked down power lines across the county. Schools closed, and many families spent the night by candlelight.” What was the effect of the fallen power lines?
“Despite his fear of heights, Leo climbed the tall ladder to rescue the kitten stuck on the roof.” What does this show about Leo?
The author writes: “All of my neighbours who drink coffee are energetic. So coffee must give everyone energy.” What is the flaw in this reasoning?
A report states: “Since the hospital began offering flu vaccines to all staff, staff sick days in winter have fallen by a third. Other hospitals in the region did not see this drop.” Why is the second sentence important?
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