The first sighting of a crescent moon after a new moon
<span>A.let myself feel sad and then find ways to move on</span>
Answer:
Describe how the students would use the apparatus to show that there were microorganisms present in the air in the laboratory. Remember to think carefully about experimental design and how to make the results reliable.
Title: using apparatus to know the presence of microorganisms
aims and objectives: description of presence of microorganisms in the air
materials and method: petri dish, agar, distilled water, hand gloves, nose mask, pipette e.t.c
methodology: pipette is used to measure the amount of water in a petri dish and placed outside where hands can not be touched for 24 hours, after then the water is taken to the lab and agar is added for bacteria growth, after 24 hours, if the microbial growth is seen on the cultured plate, then it shows that the air is contaminated with microorganism which mixes with water when exposed to air
precaution: i ensured personal protective equipment are worn throughout the experiment.
conclusion: it is ascertained that air is contaminated with microorganism as a result of the above performed experiment
Explanation:
Build several models of his tree house out of different materials, and see which model holds up best to wind, water, and ice.
Answer:
B. the pull of Earth's gravity
Explanation:
The pull of Earth's gravity on the moon is greater than the pull of the sun's gravity on it because of the distance.
