Question

1. marla was having trouble falling asleep at night. some nights she would lay awake for hours, whereas other nights she fell right to sleep. sofi suggested that she keep a sleep journal to help her discover what made her fall asleep faster. marla wrote down her activities for each day, along with if she stayed awake and for how long. marla noticed that on days when she had pe she fell asleep with no problems. she wondered if increased physical activity would help her fall asleep faster.

hypothesis: (increased or decreased) physical activity causes _______________.
if i _____________, then i will fall asleep in (more or less) time than when i _____________.

Explanation:

Based on the text, Maria noticed that on days with PE (increased physical activity) she fell asleep easily. So the hypothesis would be about increased physical activity. The structure of a hypothesis often follows an "If...then..." format. For the first blank, since PE (a form of increased physical activity) helped, it's "increased". The second part of the first line is what the increased physical activity causes - in this case, falling asleep faster. For the "If...then..." part, the "If" clause would be doing an action related to increased physical activity (like "increase my physical activity") and the "then" compares to a situation with less physical activity (like "don't increase my physical activity").

Answer:

Hypothesis: (Increased) physical activity causes falling asleep faster.
If I increase my physical activity, then I will fall asleep in (less) time than when I don't increase my physical activity.