A student investigated the effect of root space on plant growth. The student grew two groups of plants of the same variety. Both groups received the same amount of water and sunlight and grew in the same type of soil. The plants in Group A were grown in cube-shaped containers that were 3 centimeters deep. The plants in Group B were grown in cube-shaped containers that were 10 centimeters deep. The table shows the student's observations Week Plant Group A (Average Height, cm) Plant Group B (Average Height, cm) 1 2 3 2 3 6 3 5 8 4 7 10 5 8 14 6 10 18 What was the effect of root space on plant growth based on the student's investigation? Use the data from the table to support your answer. Explain how you would know whether this effect was likely due to environmental or genetic factors. (make it like a 7th grader wrote it)

Answer 1

The student’s investigation looked at how the depth of the containers affected plant growth. They grew two groups of plants that were exactly the same in every way, except for the depth of their containers. Group A had plants in 3 cm deep containers, while Group B had plants in 10 cm deep containers.

From the data, we can see that Group A's plants grew to an average height of only 2 cm in the first week and 10 cm by the sixth week. On the other hand, Group B's plants started at 3 cm in the first week and grew to 18 cm by the sixth week. This shows that the plants in Group B, which had more root space because their containers were deeper, grew taller than the plants in Group A with less root space.

The students' results indicate that the deeper container allowed Group B's plants to grow better, suggesting that having more root space positively affects plant growth. The difference in height - 10 cm for Group A versus 18 cm for Group B at week 6 - clearly supports this idea.

To figure out if the difference in growth was due to the root space or other factors like the environment or the plants' genetics, we need to consider that both groups had the same amount of water, sunlight, and soil. So the only variable that changed was the container depth. Since everything else was kept the same, it looks like the root space is really the reason for the differences in height. If we saw different results, it could indicate that genetics or environmental factors played a bigger role, but in this case, it seems clear that the root space mattered most for the plant growth.

Answer 2

make it shorter

Answer 3

The student's investigation showed that the depth of the containers affected plant growth. Group A had plants in 3 cm deep containers, and they grew to an average height of 10 cm by week 6. In contrast, Group B's plants in 10 cm deep containers grew to 18 cm by week 6. This data shows that the deeper container allowed for better growth, indicating that more root space positively impacts plant height.

Since both groups received the same amount of water, sunlight, and soil type, it looks like the difference in growth was mainly due to the root space and not because of genetics or other environmental factors. Overall, these findings suggest that deeper containers help plants grow taller.