Question

making a hypothesis

1. a is like an educated guess to the answer of a scientific question.

making hypotheses
for each question below, write a hypothesis (or guess to the answer of the question) as an “if i... then...” statement.

1. how does water affect the growth of a plant?

if i then

1. how does the amount of sunlight affect the growth of a plant?

if i then

1. how does the amount of oxygen affect how much energy your cells make?

if i then
characteristics of life

1. how many characteristics of living things do you need to be considered alive?
2. what are the eight characteristics of living things?

• cells
• adapt to environment
• respond to changes in environment
• dna
• reproduce
• use energy
• grow and develop
• stable internal environment

Explanation:

1. A hypothesis is an educated - guess in science. For the plant - water question, a possible hypothesis is based on the idea that water is essential for plant growth. For the sunlight - plant growth question, sunlight is related to photosynthesis. For the oxygen - cell energy question, oxygen is involved in cellular respiration. Regarding the characteristics of life, all eight are generally considered necessary for something to be considered alive.
2. For the "Making A Hypothesis" section:

• For the water - plant growth question: If I water a plant regularly, then it will grow taller.
• For the sunlight - plant growth question: If I provide a plant with more sunlight, then it will grow faster.
• For the oxygen - cell energy question: If I increase the amount of oxygen available to cells, then they will make more energy.

1. For the "Characteristics of Life" section: All eight characteristics (cells, adapt to environment, respond to changes in environment, DNA, reproduce, use energy, grow and develop, stable internal environment) are typically considered necessary for an entity to be considered alive.

Answer:

1. For "Making A Hypothesis":

• 2. If I water a plant regularly, then it will grow taller.
• 3. If I provide a plant with more sunlight, then it will grow faster.
• 4. If I increase the amount of oxygen available to cells, then they will make more energy.

1. For "Characteristics of Life":

• 1. All eight characteristics are needed to be considered alive.
• 2. Cells, Adapt to environment, Respond to changes in environment, DNA, Reproduce, Use energy, Grow and develop, Stable internal environment.