Page 30 - 新思维科学学生用书3 样章
P. 30
1.3 Plants and light
Why do seedling stems bend?
Baby plants are called seedlings.
Questions
5 These seedlings growing near
a window are four days old.
Why are the stems bent?
6 How could we change things so
that the stems would grow upwards
and straight?
Think like a scientist 2
How quickly will our plants grow?
You will need: plant seeds, soil, pots, ruler
Marcus and Zara grew a plant from a seed.
They measured it at 9 am each day for nine days.
Then they recorded their results on this graph.
How tall was the plant on day 1?
How many days did 5
it take for the plant
to grow to 4 cm? 4
On which days was 3
the plant tallest? Height (cm) 2
How tall might it 1
be on day 9?
What kind of science 0 1 2 3 4 5 6 7 8 9 10
enquiry was this? Day
29
