3. Which are the controlled variables?

I.    Water temperature

II.   Amount of water

III.   Amount of sugar

IV.  Dissolving time of sugar

V.    Stirring time 

Mary wants to know at which temperature does the salt dissolve faster in water. What is the dependent variable in the situation?

How can a scientist know if his/her hypothesis is effective or not?

Which of the following statements suggest a Hypothesis?

Which of the following statements suggest a Conclusion?

The pechay plants growing in nitrogen-rich soils for two weeks develop larger leaves than those in nitrogen-poor soils because nitrogen stimulates vegetative growth. What is the problem in the scenario?

Joseph loves to eat. One of his favorite food is a sandwich. He makes it with peanut butter, jams, ham, and even portions of margarine. His mother bought two packs of bread. As he was about to prepare his sandwich, he saw molds on the sides of the bread. He ran to his mom and told her about the molds. His mom told him to put a slice of bread inside an air-tight container, the other slice to put in a paper bag and the remaining slices, he left in the bread plastics. How many variables are given in the situation?

Manuel is a farmer. He noticed that there were mice that were pests on their rice crops. Their harvest of rice crops decreases. The supply of rice affected their town. Which resulted in a high price of rice. He uses three steps. First, he mixed 20g bait phosphorus material into the soil; second, he placed a scarecrow on the farm and lastly, he planted peppermint in between the rice crops. Which of the following steps is least to keep away the mice in the rice crops

What skill does a scientist show when he/she listens to the sounds that whales make?

Which question would be the best high-level Scientific question?

What do you call the series of steps designed to help you solve problems and answer questions?

In science, an educated guess is called a/an _______________.

When you decide whether the data supports the original hypothesis, you are ________________.

When a scientist shares her findings with other scientists, she is _________.

The final part or a summary of reasonable inferences is/an __________.

Anything that can change in an experiment is called_________.

All good experiments should be _____________.

Which of the following does not belong to the group?