1ST QUARTER TEST PREP.

Jamie wanted to find out if plants grow faster with more sunlight. She set up two groups of plants, one in full sunlight and one in shade. What is Jamie’s independent variable?

• Plant species

• Amount of sunlight

• Growth rate of plants

• Type of soil

In Jamie’s plant experiment above where she wanted to find out if plants grow faster with more sunlight, what is the dependent variable?

• Plant species

• Amount of sunlight

• Growth rate of plants

• Type of soil

Sarah recorded that her plant was green and had large leaves. What type of data is Sarah collecting?

• Quantitative data

• Qualitative data

• Experimental data

• Control data

Carlos measured the height of his plant every day for two weeks. What type of data is this?

• Qualitative

• Quantitative

• Theoretical

• Experimental

A scientist notices that metal expands when heated. This observation is repeated many times and described as a scientific law. What does this mean?

• It is a guess that might be true

• It always happens under the same conditions

• It is a detailed explanation of why it happens

• It cannot be tested

Scientists have observed that all living things, from tiny bacteria to large plants and animals, are made up of cells. Under microscopes, they see cells dividing and carrying out important functions necessary for life. This collection of evidence supports which of the following?

• Scientific law

• Scientific theory

• Hypothesis

• Observation

An experiment testing the effect of fertilizer on plant growth includes a group of plants that do not receive fertilizer. What is this group called?

• Experimental group

• Control group

• Independent group

• Dependent group

Maria is conducting an experiment to see how different amounts of sunlight affect the growth of tomato plants. She uses the same type of soil, watering schedule, and plant species for all her test groups. Why does Maria keep these conditions the same across all groups?

• To change the dependent variable

• To keep control variables constant and ensure a fair test

• To make the experiment more difficult

• To confuse the results

Maya repeated her experiment three times and got the same results each time. What does this repetition help show?

• That the results are accidental

• That the results are consistent and reliable

• That the experiment needs to be changed

• That the hypothesis was wrong

A scientist wants to test if a new type of fertilizer works better than the old one. Which step should they do first?

• Collect data

• Form a hypothesis

• Draw conclusions

• Share results