BRivers are flowing water that moves across the land, while lakes are standing water surrounded by land
CLakes are always bigger than rivers
DRivers are saltwater and lakes are freshwater
The key difference is movement. Rivers are flowing water -- they have a current that carries water from higher ground to lower ground, eventually reaching a lake or the ocean. Lakes are bodies of standing water (though they have gentle currents, they are not flowing in one direction like a river). Both rivers and most lakes contain freshwater.
Question 2 True / False
Oceans cover most of Earth's surface.
TTrue
FFalse
Answer: True
About 71% of Earth's surface is covered by ocean water. That means if you could see Earth from space, you would see far more blue (water) than green or brown (land). The ocean is the largest feature on our planet, and it plays a crucial role in weather, climate, and supporting life.
Question 3 Short Answer
Where does the water in a river come from, and where does it go?
Think about your answer, then reveal below.
Model answer: River water comes from rain and melting snow that collects on high ground and flows downhill. Small streams join together to form larger rivers. Eventually, most rivers flow into a lake or the ocean. The water then evaporates, forms clouds, falls as rain or snow again, and the cycle continues.
Rivers are a visible part of the water cycle -- they carry water from where it falls as precipitation to where it collects in lakes and oceans. Understanding this connection reinforces the water cycle and introduces the concept of watersheds.