earth science 1 help

 

Which of the following studies would require a scientist to have extensive knowledge in geology, meteorology, and astronomy?

 

If a scientist is studying whether there are tornadoes on planet Venus, what areas of earth science are involved?

 

A scientist with extensive knowledge in the areas of astronomy and meteorology would be best suited to study which of the following?

 

Oceanography formally began as a discipline in the 1800s with studies by

 

Which earth science area has its formal beginning in the 1800s with studies by Darwin, Cook, and Thompson?

 

Which earth science area was involved in producing the first calendars?

 

A scientist who investigates how to generate electricity from the ocean's tides would most likely study

 

A scientist who examines dinosaur fossils to understand what they ate would most likely study

 

Which planet is the appropriate distance from the Sun to have liquid water?

 

Which of the following is true concerning planet Earth?

 

Which of the following is true concerning Venus?

 

Which of the following is one reason Venus can NOT sustain life?

 

What characteristic of Mars leads scientists to believe it may have once sustained life?

 

Which of the following is NOT an example of technology in medicine?

 

Which of the following is an example of technology?

 

Which of the following is true concerning technology?

 

Which of the following is an example of a positive effect of technology on childhood obesity?

 

Which of the following statements is NOT true concerning the scientific method?

 

When you perform an experiment, you are completing which step of the scientific method?

 

Generally, the first step of the scientific method is

 

A well-tested concept that explains a wide range of observations is known as a(n)

 

Which of the following is NOT true concerning laws?

 

Which of the following is true concerning scientific theories and laws?

 

Which of the following is NOT true concerning models?

 

Which of the following is true concerning models?

 

You have completed an experiment to test the hypothesis: "If plant growth is dependent on nitrogen, then plants given more nitrogen will grow faster." You tested three sets of plants: set one received zero parts per million (ppm); set two received five ppm; set three received 10 ppm. Each set contained five plants. You watered each plant once a week for four weeks. You looked at plant height to determine if your hypothesis was supported. You represented the results in the bar graph below.



What was the control group?

 

You have completed an experiment to test the hypothesis: "If plant growth is dependent on nitrogen, then plants given more nitrogen will grow faster." You tested three sets of plants: set one received zero parts per million (ppm); set two received five ppm; set three received 10 ppm. Each set contained five plants. You watered each plant once a week for four weeks. You looked at plant height to determine if your hypothesis was supported. You represented the results in the bar graph below.



Which of the following changed as a result of the different levels of nitrogen treatment?

 

You have completed an experiment to test the hypothesis: "If plant growth is dependent on nitrogen, then plants given more nitrogen will grow faster." You tested three sets of plants: set one received zero parts per million (ppm); set two received five ppm; set three received 10 ppm. Each set contained five plants. You watered each plant once a week for four weeks. You looked at plant height to determine if your hypothesis was supported. You represented the results in the bar graph below.



Suppose you had a fourth set of plants that received 2 ppm of nitrogen, which of the following is the best prediction for the growth of the fourth set of plants?

 

You notice that in your house, some of the houseplants grow faster than others. Which of the following is the best hypothesis for this phenomenon?

 

Suppose you ask yourself the question "Does chocolate cause pimples?" which of the following would be the best hypothesis for this question?

 

In the hypothesis - "If plant growth depends on certain wavelengths of light, then plants exposed to blue light will grow faster than plants in sunlight" - what is the independent variable?

 

The materials and methods for the "Colored Carnations" lab are below. Read through them and then answer the following question.
Materials needed:
Three white carnations
Three vases
Blue and red food coloring
Water
Procedure:
Step 1: Fill each vase with 100 milliliters (mL) (about ½ cup) of water.
Step 2: In one vase, add 20 drops of blue food coloring.
Step 3: In a different vase, add 20 drops of red food coloring.
Step 4: With scissors, cut each carnation stem at the bottom at an angle.
Step 5: Place one flower in each vase so that the cut part of the stem is fully submerged in the water.
Step 6: Create a table and record your observations every two hours.
Which of the following is a material needed that is not listed in the "Materials needed" section?

 

The Kelvin is the SI unit used to measure

 

Which of the following is the SI unit for electric current?

 

Which of the following would you use a gram to measure?

 

If you were to measure the mass of a person, which SI measurement would you use?

 

Perform the following conversion: 50 degrees Celsius = _______ Kelvin.

 

You need to know if a block of wood will float in water. What measurements would you take to determine this?

 

The measure of the amount of matter an object has in it is known as

 

Which of the following is the best definition of weight?

 

What happened in 1999 when NASA lost a $125 million dollar orbiter sent to study Mars' climate?