Astronauts in space just got a tasty delivery. It came from students in Melbourne, Australia. They are starting a test on space yogurt. The 40 high school students are working with the scientists from Swinburne University. Together, they are studying bacteria that produce yogurt.
In December 2021, a rocket delivered the bacteria to the International Space Station（ISS）. The students are hoping to learn what will happen to bacteria on the ISS.
“On Earth, you feel gravity. But this does not happen on the ISS.” said Aysel, who studies at Swinburne University. They want to know what conditions the astronauts need to make yogurt.
But how exactly do bacteria make yogurt? It all starts with the bacteria that live in milk. These bacteria eat the sugar in milk. Then they make a kind of acid. The acid turns the milk thick and sour.
The students packed 36 boxes with milk and bacteria in them. Then, they sent the boxes to the ISS. The astronauts will use different kinds of milk and bacteria and run tests for 6 weeks. Then, they will send the yogurts back to Australia.
The students will study the yogurts when they come back to Earth. They want to look at the nutrients in the yogurts.
“We even might get to taste them.It is pretty exciting,”Sgori, a student at Swinburme University, said. The students also want to compare the space yogurts to the ones they grew on Earth.
Dr. Sara Webb works with the students on this project. She hopes they can send astronauts to space with bacteria and milk. Then they can easily make their own tasty yogurts in space.
【小题1】The students want to find out _________.| A．what will happen to bacteria in space |
| B．why gravity does not happen on the ISS |
| C．why yogurt tastes better on the ISS |
| D．how the astronauts drink yogurt in space |
| A．Nutrients and bacteria. |
| B．Bacteria and milk. |
| C．Milk and acid. |
| D．Acid and nutrients. |
| A．The tests in space will last for 6 weeks. |
| B．Yogurts made in space taste better than that made on Earth. |
| C．The astronauts on the ISS have received tasty yogurts made by the students. |
| D．Dr. Sara hopes astronauts can make their own yogurts when they come back. |
| A．Delivery has arrived at space station |
| B．Space yogurt test has begun. |
| C．Astronauts learn to make healthy yogurt |
| D．Tour on the ISS becomes popular |
