review of info: claim: a statement about the solution to a problem - what you think you know
evidence: scientific data to support your claim - measurable
reasoning: justification (which means you have to back it up) which shows why the data supports your claim using scientific principles
find the claim, evidence, and reasoning in the following paragraphs: underline the claim, circle the evidence and put a box around the reasoning.
1. life science: a common type of asexual reproduction found in nature is called mitosis. mitosis requires less energy than sexual reproduction does. mitosis can occur in seconds and does not require a mate to reproduce. sexual reproduction requires two compatible parents. it also requires time to produce the egg and sperm cells and then for fertilization to occur. energy is required to find a compatible mate, produce sex cells, and for fertilization. therefore mitosis requires less energy than sexual reproduction does.
2. physical science: cold air is more dense than hot air. when i filled a 9 centimeter diameter balloon with cold air the mass was 1 gram and when i measured the mass of the same size balloon with hot air it was 0.5 grams. when molecules are cooled they move closer together and when they are heated up they move farther apart. because of this more molecules can fit into a balloon when the air going in is cold than when the air going in is warm.
now see if you can make your own claim, evidence, and reasoning using what you know about this biology topic.
sammy’s plant growth experiment
height on day 1 height on day 5
plant a 12 cm 14 cm
plant b 12 cm 13 cm
plant c 12 cm 16 cm
3. sammy wants to see if plants really do grow better in sunlight. he uses 3 plants of the same type and size in 3 locations. plant a is placed on mrs. shaw’s countertop in the center of the room, plant b is placed inside the cabinet, and plant c was placed near window sill. after 5 days sammy measures the growth of each plant and documents it in the table below.
claim:
evidence:
reasoning:
is this a valid experiment? defend your answer.
4. based on the examples reviewed in class, your notes, and this worksheet – write a claim - evidence - reasoning to address the question, “does air have mass?”
watch the “what is matter?” video and write a claim - evidence - reasoning for the mass of air experiment from the video. video link: what is matter? video
identify what you could’ve done differently in that experiment to collect quantitative (numbers) data.

Question

review of info: claim: a statement about the solution to a problem - what you think you know
evidence: scientific data to support your claim - measurable
reasoning: justification (which means you have to back it up) which shows why the data supports your claim using scientific principles
find the claim, evidence, and reasoning in the following paragraphs: underline the claim, circle the evidence and put a box around the reasoning.
1. life science: a common type of asexual reproduction found in nature is called mitosis. mitosis requires less energy than sexual reproduction does. mitosis can occur in seconds and does not require a mate to reproduce. sexual reproduction requires two compatible parents. it also requires time to produce the egg and sperm cells and then for fertilization to occur. energy is required to find a compatible mate, produce sex cells, and for fertilization. therefore mitosis requires less energy than sexual reproduction does.
2. physical science: cold air is more dense than hot air. when i filled a 9 centimeter diameter balloon with cold air the mass was 1 gram and when i measured the mass of the same size balloon with hot air it was 0.5 grams. when molecules are cooled they move closer together and when they are heated up they move farther apart. because of this more molecules can fit into a balloon when the air going in is cold than when the air going in is warm.
now see if you can make your own claim, evidence, and reasoning using what you know about this biology topic.
sammy’s plant growth experiment
height on day 1  height on day 5
plant a 12 cm 14 cm
plant b 12 cm 13 cm
plant c 12 cm 16 cm
3. sammy wants to see if plants really do grow better in sunlight. he uses 3 plants of the same type and size in 3 locations. plant a is placed on mrs. shaw’s countertop in the center of the room, plant b is placed inside the cabinet, and plant c was placed near window sill. after 5 days sammy measures the growth of each plant and documents it in the table below.
claim:
evidence:
reasoning:
is this a valid experiment? defend your answer.
4. based on the examples reviewed in class, your notes, and this worksheet – write a claim - evidence - reasoning to address the question, “does air have mass?”
watch the “what is matter?” video and write a claim - evidence - reasoning for the mass of air experiment from the video. video link: what is matter? video
identify what you could’ve done differently in that experiment to collect quantitative (numbers) data.

Accepted Answer

### 1. Life Science
# Answer:
- Claim: Mitosis requires less energy than sexual reproduction does.
- Evidence: Mitosis can occur in seconds and does not require a mate to reproduce. Sexual reproduction requires two compatible parents, time to produce the egg and sperm cells, and fertilization to occur. Energy is required to find a compatible mate, produce sex - cells, and for fertilization.
- Reasoning: Energy is needed for the processes involved in sexual reproduction such as mate - finding, sex - cell production, and fertilization. Mitosis has fewer such energy - consuming steps as it is a form of asexual reproduction and does not require a mate or the production of specialized sex cells.

### 2. Physical Science
# Answer:
- Claim: Cold air is more dense than hot air.
- Evidence: When a 9 - centimeter diameter balloon was filled with cold air the mass was 1 gram and when filled with hot air it was 0.5 grams. When molecules are cooled they move closer together and when they are heated up they move farther apart.
- Reasoning: Density is mass per unit volume. Since more mass of cold air can fit into the same - sized balloon compared to hot air, and the behavior of molecules (closer together when cold, farther apart when hot) affects the amount of air that can occupy a given space, cold air is more dense.

### 3. Sammy's Plant Growth Experiment
# Answer:
- Claim: Plants grow better in sunlight.
- Evidence: Plant A (in a moderately lit area) grew from 12 cm to 14 cm in 5 days, Plant B (in the dark inside a cabinet) grew from 12 cm to 13 cm in 5 days, and Plant C (near a windowsill with sunlight) grew from 12 cm to 16 cm in 5 days.
- Reasoning: Sunlight is a key factor in photosynthesis, the process by which plants convert light energy into chemical energy for growth. Plant C, which had the most sunlight, showed the greatest growth, indicating that sunlight promotes better plant growth.
- Is this a valid experiment? Defend your answer:
    - Answer: It is somewhat valid.
    - Brief Explanation: It has a control (Plant B in the dark) and experimental groups (Plant A and C with different levels of light). However, it could be improved by having more plants in each group to account for individual plant - to - plant variation and controlling other factors like water and soil quality more precisely.

### 4. Does Air Have Mass?
# Answer:
- Claim: Air has mass.
- Evidence: (Based on a typical air mass experiment) When a deflated balloon is weighed and then inflated with air and weighed again, the inflated balloon has a greater mass.
- Reasoning: The increase in mass when the balloon is inflated is due to the air being added to the balloon. Since the mass changes when air is added, air must have mass.
- What could be done differently to collect quantitative (numbers) data:
    - Answer: Use a more precise scale to measure the mass difference. Also, measure the volume of the air added to the balloon (using methods like water displacement for a known volume of air) and calculate the density of the air by dividing the measured mass by the volume.

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QUESTION IMAGE

Question

Explanation:

1. Life Science

Answer:

2. Physical Science