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    Second Grade
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    Unit test · Weeks 19–24 · 25–30 min · 32 points

    Science Unit 4 Test: Earth's Systems: Water, Wind & Land

    Name Date

    Part 1: Land & Water Features

    Use the map of Pine Island for questions 1 and 2.

    Map of Pine Island

    This map shows Pine Island from above. The key tells what each symbol means. A river starts on the mountain and ends in the lake.

    A map of Pine Island seen from above, with ocean all around, a mountain on one side, a river running down into a lake, trees, and a key.

    Key: brown triangle = mountain, blue wavy line = river, blue oval = lake, green dot = tree. Ocean all around.

    1. On the map, what does the blue wavy line show?
    2. The river flows from the mountain into the lake. Why does the water flow that way?
    3. Circle the TWO places where water is found as a solid.glacierriverice cappond
    4. A class tossed a globe 20 times. A thumb landed on water 15 times and on land 5 times. What does this tell you about Earth?

    Part 2: Erosion & Change

    Think about how land changes, fast and slow.

    HillSpoons of sand washed to the bottom
    Hill A: bare sand12
    Hill B: covered with grass clippings3
    1. Write F for a fast change or S for a slow change. ___ an earthquake cracks a road ___ a glacier scrapes out a valley ___ a volcano erupts ___ ocean waves wear a cliff down into sand
    2. Two sand hills got the same amount of water. Look at the table. Which hill lost more sand? How many more spoons?
    3. What does the hill test tell you about plants and erosion?
    4. How is weathering different from erosion?

    Part 3: Weather & Water Cycle

    Use the weather log and the pinwheel counts.

    DaySkyWindRain?
    Mondaysunnylightno
    Tuesdaycloudystrongyes
    Wednesdaycloudystrongyes
    Thursdaysunnynoneno
    Fridaysunnylightno
    1. How many days had rain? What was the wind like on those days?
    2. A pinwheel spun 30 times in an open field, 12 times behind a bush and 8 times next to a wall. Which spot was windiest? Why did it spin less next to the wall?
    3. It gets very cold and the water in a puddle freezes. Is it solid or liquid now? What will happen when the sun warms it?
    4. In spring, snow on a mountain melts. Where will the water go?

    Part 4: CER Response

    Read about Ella's test. Then answer with a claim, evidence and reasoning.

    Ella's Wind Test

    Ella made three piles of dry sand the same size. She blew on each pile through a straw for 10 seconds: one soft, one medium, one hard. Then she counted the spoons of sand that blew off the plate.

    How Ella blewSpoons of sand blown off
    soft1
    medium3
    hard6
    1. Does a stronger wind change the land more? Claim: My answer is ____. Evidence: The table shows ____. Reasoning: This is because ____.