Observations, inferences and reading data

Grade 6 Science Worksheet - Challenge Me

Circle the best answer.

1. 1.

   Note: measured at 1 p.m. Esme measured the ground temperature at 1 p.m. on three days. Which comparison fits the data?

   • The grass averaged 6 °C warmer
   • The blacktop was 33 °C warmer than the grass
   • Blacktop is warmer than grass in any town on Earth
   • The blacktop averaged 6 °C warmer than the grass

2. Read this first

   Water soaked up (model data)

   Towel	Trial 1	Trial 2	Trial 3
   A	30 mL	32 mL	31 mL
   B	40 mL	20 mL	33 mL

3. 2.

   Jun tested two paper towels three times each. Which statement fits the data?

   • B's results are the steadier of the two
   • Both average 31 mL, but A's results are steadier
   • A soaked up more water on average than B in these tests
   • B soaked up more, since 40 mL is the top value
4. 3.

   Luz's friend sees an empty cracker jar and says, "The crackers were eaten" is an observation. Which response is best?

   • Agree: anything you think about it is an observation
   • Disagree: the empty jar is an inference too
   • Disagree: the empty jar is observed; what happened is inferred
   • Agree: it is obvious, so it counts as observed

5. High temperature (model data)

   Day	High
   Monday	18 °C
   Tuesday	20 °C
   Wednesday	22 °C

6. 4.

   Milo's cousin says, "Each of the last three days was warmer, so tomorrow will be the hottest day of the year." Which response is best?

   • Agree: a rising trend has to keep rising each day
   • Disagree: the days were getting colder
   • Agree: three days show the whole year
   • Disagree: three days are too few to predict that
7. 5.

   Numbers, and descriptions such as color and texture. Noah's friend says qualitative data are useless because they have no numbers. Which response is best?

   • Disagree: qualitative data are numbers too
   • Disagree: color and texture are useful evidence too
   • Agree: descriptions are just inferences
   • Agree: data must be numbers to count

8. Plant height (model data)

   Week	Height	Note
   1	3 cm	none
   2	5 cm	none
   3	7 cm	none
   4	4 cm	from pot rim
   5	11 cm	none

9. 6.

   Ren measured a plant weekly: 3, 5, 7, 4 and 11 cm. Week 4 was measured from the pot's rim, not the soil. Which result is odd?

   • Week 5's 11 cm, the tallest
   • There is no odd result; plants shrink at times
   • Week 1's 3 cm, the smallest
   • Week 4's 4 cm, measured from the wrong spot

10. Classroom temperature (model data)

    Reading	Temperature	Note
    1	21 °C	none
    2	22 °C	none
    3	22 °C	none
    4	35 °C	in sunlight
    5	21 °C	none

11. 7.

    Tala recorded classroom temperatures of 21, 22, 22, 35 and 21 °C. The 35 °C reading was taken with the thermometer in direct sunlight. What should Tala do?

    • Record the room as hot, with no number
    • Retake that reading out of the sunlight
    • Say the room heated up to 35 °C that day
    • Keep 35 °C, since it was measured

12. Water left (model data)

    Day	Water
    0	200 mL
    1	190 mL
    2	180 mL
    3	170 mL

13. 8.

    Zee left an open glass of water on a shelf and measured it daily. About how much water will be left on day 5?

    • About 250 mL
    • About 150 mL
    • About 170 mL, as on day 3
    • No water left by day 5
14. 9.

    Ari's seedling was 2 cm on day 2, 4 cm on day 4 and 6 cm on day 6. About how tall will it be on day 8?

    • About 16 cm
    • About 6 cm, as on day 6
    • About 4 cm
    • About 8 cm

15. Ice mass (model data)

    Time	Mass
    0 min	30 g
    5 min	24 g
    10 min	18 g
    15 min	12 g

16. 10.

    Bo weighed an ice cube on a plate every 5 minutes. When will it be fully melted, if the pattern continues?

    • At 15 minutes, when it was 12 g
    • At about 25 minutes
    • It will not melt, since the mass keeps growing
    • The room must be very hot