Colin is conducting an experiment about static electricity. To start his experiment, he has two balloons. He rubs one of the balloons on his head and then places both balloons close to the wall. What is the control in his experiment?

Both balloons in the experiment

The balloon he does not rub against his head

The balloon he rubs against his head

The wall he uses to test static electricity

Answer:

The wall he uses to test static electricity

Explanation:

Hope this helps :D

I need the right answer so if you don't know the answer don't answer

Both the cell membrane and the cell wall act to protect the organelles within a cell. Which of the following best describes how the cell membrane is different from the cell wall?

When substances pass through the cell membrane, this process is called cellular

division
respiration
transport
uptake

Trees, birds, and bacteria are all similar because they are all formed from —

Pleasee help me pwease

A spacecraft is launched from Earth toward the moon.

Where will the spacecraft be when the gravitational forces acting on it are equal?

closer to Earth than to the moon because the moon has greater mass than Earth
closer to the moon than to Earth because the moon has greater mass than Earth
closer to Earth than to the moon because Earth has greater mass than the moon
closer to the moon than to Earth because Earth has greater mass than the moon

Which is the best unit of measurement to investigate the weight of rabbits?

a: inches b: tons c: ounces d: feet
HELP DUE TODAY!

PLEASE HELP WILL GIVE BRAINLIEST FILE IS ATTACHED

Read the excerpt from "The Monkey's Paw.”

"It had a spell put on it by an old fakir," said the sergeant-major, "a very holy man. He wanted to show that fate ruled people's lives, and that those who interfered with it did so to their sorrow. He put a spell on it so that three separate men could each have three wishes from it."

His manner was so impressive that his hearers were conscious that their light laughter jarred somewhat.

"Well, why don't you have three, sir?" said Herbert White, cleverly.

The soldier regarded him in the way that middle age is wont to regard presumptuous youth. "I have," he said, quietly, and his blotchy face whitened.

"And did you really have the three wishes granted?" asked Mrs. White.

"I did," said the sergeant-major, and his glass tapped against his strong teeth.

"And has anybody else wished?" persisted the old lady.

"The first man had his three wishes. Yes," was the reply; "I don't know what the first two were, but the third was for death. That's how I got the paw."


Which event does the excerpt foreshadow?


A. the sergeant-major's return to India and the resulting tragedy

B. the sergeant-major obtaining the paw and the resulting tragedy

C. Mr. White's refusal of the paw and the resulting tragedy

D. Mr. White accepting the paw and the resulting tragedy

Every chemical or physical change in matter includes a change in _____.


temperature

mass

energy

chemical formula

5CaO4

How many total elements are in the chemical formula?

How many atoms of oxygen are in the formula?

How many atoms of calcium are in the chemical formula?

How many total atoms are in the chemical formula?

Which number is the subscript?

Which number is the coefficient?

20 points Scince HHEELLPP
What are the different types of tropism?
Chemotropism –

Geotropism-

Hydrotropism-

Heliotropism-

Phototropism-

Thermotropism-

Thigmotropism-

Earth's magnetic field is generated by the outer core. Which characteristics of this layer create that phenomenon? How do you think scientists pinpointed the cause of the magnetic field as the outer core?

which is a characteristic of an amorphous solid?


particles arranged in a repeating pattern

has a distinct melting point

made up of crystals

becomes softer as temperature rises