Which of the following questions can be tested in a scientific way?
Do turtles or hamsters make better pets?
How do sea turtles get their food?
Are turtles beautiful creatures?
Are hamsters fun to play with?
The type of soil used in the experiment is the
dependent variable
independent variable
control variable
conclusion
Joey wanted to find out when hot cocoa powder would mix in milk with just three stirs. Which of the statements below best states a hypothesis for his experiment?
Hot cocoa needs hot milk
Hot cocoa powder will need just three stirs in milk with a temperature of 51° C.
If we are going to make hot cocoa, then we must have milk at a certain temperature.
Adding salt to the hot cocoa powder will make it mix better.
Why do scientists write articles and make public presentations? Select two correct answers.
to communicate their findings
to prove their hypothesis
to use other scientists as controls
to become rich and famous
so other scientists can copy their experiments