Answer:
Salt is the variables being tested.
Explanation:
Solubility of salts are the variables being tested in the experiment by changing temperature. Variables are those factors or elements whose values are changing. Salts are put in the two test tube which has the same temperature i. e. 25°C. Then the temperature of the test tube will be increases and due to increase in temperature, the solubility of salts in water increases and the whole solution will be uniform while salts remain at the bottom due to no increase in temperature.
Older inventions had vast improvements made on them.
Answer:
The correct answer to this is chronological order
Explanation:
Chronological is the sequence of events in accordance with how they have occured.
The emphasis is that the series of events must be arranged in order of occurrence,otherwise the chronological order is uttered and the events could no longer be said to be chronologically arranged.
In the example,the TV viewer needs to sit first,then pick up the remote where it was kept the last time before switching the TV set and lastly he or she can tune to the desired channel as per preferences.
They build a bridge to cleverly take their animals across
Answer:
The author's main purpose/idea is trying to persuade you to think shorter summer breaks are better.
Explanation:
So, basically, shorter summer breaks are better.
