In Priestley's experiment, what happened to the candle flame in the first experiment in which it was the only thing enclosed in the container?(1 point)

Question

Responses

It burned brighter
It burned brighter

It changed color
It changed color

It exploded
It exploded

It went out (extinguished)

In Priestley's second experiment in which both a plant and the candle were enclosed in the container, what occurred?(1 point)
Responses

The flame persisted longer than the original experiment
The flame persisted longer than the original experiment

The candle was extinguished immediately
The candle was extinguished immediately

It exploded
It exploded

It changed color
It changed color
Question 3
Which of the following choices below were proven by Priestley's experiments? Select all that apply. (1 point)
Responses

The process of photosynthesis releases oxygen into the environment
The process of photosynthesis releases oxygen into the environment

A flame requires oxygen to burn
A flame requires oxygen to burn

Photosynthesis absorbs oxygen from the environment
Photosynthesis absorbs oxygen from the environment

Carbon dioxide is essential to fire

Answer 1

1. In Priestley's first experiment, where the candle flame was the only thing enclosed in the container, it went out (extinguished).

2. In Priestley's second experiment, which included both a plant and the candle enclosed in the container, the flame persisted longer than the original experiment.

3. The following choices were proven by Priestley's experiments:

   • The process of photosynthesis releases oxygen into the environment
   • A flame requires oxygen to burn