Inert gases form clathrate hydrates when dissolved in water, astrict the activity of water molecule, prolong the store of fruits and vegetables.

惰性气体可以在水中形成笼形水合物，限制水分子的活动，延长果蔬的贮存时间。

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Conversely, in looking for the pathological cause of these murals, it is definitely important to closely follow the trail of the activity of water.

反过来，寻找这些壁画的病理学原因，便应该紧紧追踪水的活动。

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The latter two sources are limited to those few areas where surface water seeps down through underground faults or fractures to reach deep rocks heated by the recent activity of molten rock material.

后两种来源局限于少数区域，在这些区域，地表水通过地下断层或断裂往下渗透，从而接触到被近期的熔岩活动加热的深层岩石。

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"Kids really get engaged in science in the garden where it's a kind of fun activity where they're collecting data and seeing how different temperatures will change the amount of water that's needed by a crop, so the science concepts come easily."

VOA: special.2011.06.14

Previous sites explored by the rover are thought to have been shaped by the activity of acidic water, which would pose a more challenging proposition for any simple microbes that might have evolved on the early Mars.

BBC: Opportunity and Curiosity find similar rocks on Mars

At this time of year, the sun rises at around 6:30am, an hour after the first ferries leave the wharf, so there's plenty of activity on the water.

CNN: 24 hours in Sydney: Cocktails, scenic walks ... and sharks?

The project has been carried out during the 2008-2009 and 2009-2010 school years and was aimed at all teachers open to participating in a creative activity on the theme of water and science with their Primary or early Secondary school classes.

UNESCO: Natural Sciences