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    Second Grade
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    Unit test · Weeks 31–36 · 30–35 min · 32 points

    Science Unit 6 Test: Year-End Science Portfolio & Science Fair

    Name Date

    Part 1: Life Cycles & Biodiversity

    Think about how living things grow and where they live.

    SquareKinds of plantsKinds of insects and bugsOther kinds
    grass square542
    pavement square110
    1. Number the frog's life cycle stages 1 to 4. ___ frog ___ egg ___ tadpole with legs ___ tadpole
    2. Draw the life cycle of a bean plant as a circle. Show 4 stages with arrows.
    3. Which stage of a butterfly's life eats leaves and grows fast?eggcaterpillarchrysalisbutterfly
    4. Look at the table. How many kinds of living things were in each square? Which square has more biodiversity?

    Part 2: Matter & Earth Review

    Think back to Unit 1 (matter) and Unit 4 (land and water).

    1. A sponge and a rock are put in a bowl of water. Name one property that is different for them.
    2. Which object is hard, shiny and does not bend?metal keycotton ballwool sockrubber band
    3. Draw a map from above with a mountain, a river and a lake. Make a key with a symbol for each one.
    4. A river flows from the mountains to the ocean. Why does it not flow from the ocean up to the mountains?

    Part 3: Science Fair: Question & Data

    Omar dropped three balls from 100 cm, three times each, and measured how high each one bounced.

    BallTrial 1Trial 2Trial 3Total
    tennis ball55 cm52 cm58 cm165 cm
    ping-pong ball70 cm74 cm72 cm216 cm
    rubber bouncy ball82 cm85 cm80 cm____
    1. Which question can you test? Circle it. Then tell what you would measure.Which paper airplane is the coolest?Which flies farther: a plane made of heavy paper or one made of light paper?Do you like paper airplanes?
    2. Find the total for the rubber bouncy ball. Which ball bounced highest? Name one thing Omar kept the same.

    Part 4: CER Response

    Read about Kim's science fair test. Then answer with a claim, evidence and reasoning.

    Kim's Paper Towel Test

    Kim cut squares of three paper towel brands, all the same size. She put each square in a bowl with the same amount of water, then squeezed it out into a cup and counted the spoons of water it had soaked up. She did three trials for each brand.

    BrandTrial 1Trial 2Trial 3Total
    Brand A45413
    Brand B76720
    Brand C33410
    1. Which paper towel soaks up the most water? Claim: My answer is ____. Evidence: The table shows ____. Reasoning: I trust this answer because ____.