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 blacktop was 33 °C warmer than the grass
   • Blacktop is warmer than grass in any town on Earth
   • The grass averaged 6 °C warmer
   • The blacktop averaged 6 °C warmer than the grass
2. 2.

   Kira grew bean plants with and without plant food. Which statement does the graph support?

   • The gap between the groups was 13 cm at week 3
   • The gap grew each week, reaching 5 cm by week 3
   • Plant food doubles the growth of any plant it touches
   • The plants without plant food grew faster
3. 3.

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

   • Disagree: the empty jar is an inference too
   • Agree: it is obvious, so it counts as observed
   • Agree: anything you think about it is an observation
   • Disagree: the empty jar is observed; what happened is inferred
4. 4.

   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?

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

5. Read this first

   Bounce height (model data)

   Trial	Bounce	Note
   1	42 cm	none
   2	41 cm	none
   3	18 cm	hit a book
   4	43 cm	none

6. 5.

   Pia's ball bounced 42, 41, 18 and 43 cm. On the 18 cm trial it hit the edge of a book. What should Pia do?

   • Stop testing, since the data are ruined
   • Average the four trials and leave no note
   • Note the cause and redo that trial
   • Report 18 cm as the result

7. 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

8. 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?

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

9. 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

10. 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
    • Say the room heated up to 35 °C that day
    • Keep 35 °C, since it was measured
    • Retake that reading out of the sunlight

11. Water left (model data)

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

12. 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?

    • No water left by day 5
    • About 250 mL
    • About 170 mL, as on day 3
    • About 150 mL
13. 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 4 cm
    • About 6 cm, as on day 6
    • About 8 cm

14. Ice mass (model data)

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

15. 10.

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

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