Escape the Volcano

Escape the Volcano book cover — SCIENCE ADVENTURES ESCAPE THE VoLCANO Explore materials and use science to survive Richard and Louise Spilsbury Smart Apple Media

Escape the Volcano — page 1 — VOLCANO RESCUE We shouldn t be doing this Jess We're going to get into big trouble Look Zac my brother would be here by now if he could Something's up He would know before anyone else that the volcano is going to erupt today with all the equipment he s got up there If you don't want to help me rescue him go back We're best friends says Ben Yeah adds Amelie Where you go we go Sure says Zac quietly But what's that funny smelie Oh no Amelie shouts It s sulphur gas The volcano is going to blow sooner than they thought Nah I can't see anything says Zac It must be Ben's egg sandwiches that smell R WHAT DO YOU THINK Zac is right there can't be a gas there if we can't see it OR Amelie is right gases exist and take up space even if we cannot see them PROVE IT Explore gases for yourself You need I dry sponge I bowl of water I measuring cup Squeeze the dry sponge _ very tightly to force the air out of the holes inside it Keep squeezing Put the sponge in the bowl of water Then let it go Lift out the sponge and quickly squeeze the water it contains into the measuring

Escape the Volcano — page 2 — WHY IT WORKS A sponge is made of a solid material but has holes filled with air a gas You squeezed out the air and filled those spaces with water instead By measuring how much liquid comes out of the sponge you can find out how much gas was in there before Amelie is right gas can be there even if we can't see

1

PAGE 1 OF 25

›

The only kids' eBook subscription service that offers thousands of high-quality books from well known publishers like HarperCollins, National Geographic and others.

JavaScript Required

Whoops! We're sorry but Epic doesn't work properly without JavaScript enabled. Check your web browser's settings to make sure it's enabled.