Nature of Science

Jose presented the findings of his science project at the District’s science fair. Other students were interested in his investigation and asked many questions about his project. They wanted to know if he was careful with his investigation. What would a scientist call this type of dialogue?

• evidence

• peer review

• replication

• repetition

Hailee is preparing her experiment for the school’s science fair. She is studying how temperature affects the rate of dissolving. To prepare for her investigation she warms 500 milliliters (mL) of water to three different temperatures in identical beakers. She places the same amount of material to be dissolved into each beaker.
 
What variable is the water temperature?

• independent

• dependent

• control

• variance

Tags

NGSS.MS-PS3-4

Which type of scientific investigation includes the changing or controlling of conditions?

• experiment

• investigation

• hypothesis

• replication

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-4

Emily is preparing her experiment for her science fair project. She plans to study the effect of different fertilizers on plants. She fills 4 pots with the same type and amount of soil. In three of the plants, she mixes in a different type of fertilizer. In one of the pots, she does not add any fertilizer. She then plants 5 seeds all from the same package. For the next few weeks, she will add the same amount of water to each plant every day. Once the plants have sprouted Eddie plans to measure the height of each plant every day for 3 weeks.

In Emily's experiment, what is the pot with no fertilizer called?

• control

• independent variable

• dependent variable

• hypothesis

Tags

NGSS.MS-LS2-1

Emily is preparing his experiment for his science fair project. She plans to study the effect of different fertilizers on plants. She fills 4 pots with the same type and amount of soil. In three of the plants, she mixes in a different type of fertilizer. In one of the pots, she does not add any fertilizer. She then plants 5 seeds all from the same package. For the next few weeks, she will add the same amount of water to each plant every day. Once the plants have sprouted Hailee plans to measure the height of each plant every day for 3 weeks.

In Emily's experiment, what do the different types of fertilizer represent?

• control group

• independent variable

• dependent variable

• hypothesis

Emily is preparing his experiment for his science fair project. She plans to study the effect of different fertilizers on plants. She fills 4 pots with the same type and amount of soil. In three of the plants, she mixes in a different type of fertilizer. In one of the pots, she does not add any fertilizer. She then plants 5 seeds all from the same package. For the next few weeks, she will add the same amount of water to each plant every day. Once the plants have sprouted Hailee plans to measure the height of each plant every day for 3 weeks.

In Emily's experiment, what does the height of the plant represent?

• control group

• independent variable

• dependent variable

• hypothesis

Tags

NGSS.MS-LS1-5

Emily is preparing her experiment for her science fair project. She plans to study the effect of different fertilizers on plants. She fills 4 pots with the same type and amount of soil. In three of the plants, she mixes in a different type of fertilizer. In one of the pots, she does not add any fertilizer. She then plants 5 seeds all from the same package. For the next few weeks, she will add the same amount of water to each plant every day. Once the plants have sprouted Eddie plans to measure the height of each plant every day for 3 weeks.

In Emily's experiment, what does the water represent?

• control group

• independent variable

• dependent variable

• hypothesis

Tags

NGSS.MS-ETS1-1