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yarga [219]
3 years ago
13

What are some good ideas for a science experiment/research?? For 8th graders??

Biology
1 answer:
Fiesta28 [93]3 years ago
5 0
I recommend a science project that could test wind. Cut up a few flaps on a paper, try to make a mini windmill out of straws and thin cardboard, and study the difference between how much force you give it, and the wind it produces to move the paper flaps.
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✧・゚: *✧・゚:* hello *:・゚✧*:・゚✧
In-s [12.5K]

Answer:

c

Explanation:

If you wanted to reduce health risks, why make more?

7 0
3 years ago
Why do ecosystems need producers?
Alinara [238K]

Ecosystems need producers because they are the start of the food chain.

Producers are consumed by first consumers, the second consumers and so on.

6 0
3 years ago
How does temperature influence air pressure? pls help me
disa [49]

Explanation:

When gas molecules are heated, the molecules move more quickly, and the increased velocity causes more collisions. As a result, more force is exerted on each molecule and air pressure increases. Temperature affects air pressure at different altitudes due to a disparity in air density.

8 0
3 years ago
Consider the abbreviated model of meiosis and the four gametes produced at the completion of meiosis II. Imagine that these game
den301095 [7]

The right answer is A) Trisomy

Aberrant karyotypes containing an abnormal number of chromosomes are known in the human species. The best-known (and most common) chromosomal abnormality is trisomy 21, which is responsible for Down syndrome (mongolism). There are others such as Turner syndrome (woman with a single X chromosome) or Klinefelter syndrome (man XXY).


These abnormalities originate from the non-disjunction of the chromosomes of a pair of homologues during metaphase I of meiosis. At the end of division I, a daughter cell contains the two chromosomes of the pair considered and the other cell does not contain a chromosome of this pair. A similar result can be obtained during a bad distribution of chromatids during anaphase II.


After fertilization from a gamete of this type, a trisomy or a monosomy is obtained.

4 0
3 years ago
Read 2 more answers
This is for Forensics<br><br>What is the difference between sand, silt, and clay?​
KIM [24]

Answer:

They main difference is in chemical composition and particle size. Silt is composed of silicate minerals, or those containing silicon and oxygen. Clay is composed of metal silicates, or silicates with metals like magnesium or aluminum associated with it.Clay particles are extremely fine — smaller than 0.002 mm. Sand particles are 2.00 to 0.05 mm in diameter

Explanation: Basically, the main difference is their size.

Good luck is Forensics ʕ·ᴥ·ʔ

4 0
2 years ago
Read 2 more answers
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