variable practice + COL

​Carl wanted to see if the brand of soil that trees were placed in had an effect on how tall they grew......

Experiment:

Multiple Choice

The dependent variable is:

• The variable being studied and measured in an experiment
• The variable that is manipulated in an experiment
• The variable that is not important in an experiment
• The variable that remains constant in an experiment

Multiple Choice

Based on the experiment..... Tree height would be:

• Independent variable

• dependent variable

• the control

• a constant

Fill in the Blanks

Multiple Choice

in order to make sure an experiment is accurate, we have to have some constants. what are these?

• Variables that change during the experiment
• Factors that are not important to the experiment
• Conditions that are only relevant in certain situations
• Factors that remain the same throughout the experiment

Multiple Choice

Which characteristic is shown: A plant switches position and follows the sunlight throughout the day.

• Grow and develop

• Respond to a stimulus

• Acquire and use energy

• Reproduce

Multiple Choice

What is one way to tell if something is living?

• It uses sunlight as energy

• It has DNA

• It can eat food

• it is able to move around

Multiple Choice

When a group of cells come together to perform the same function, they make _______

• an atom

• an organ

• a cell

• a tissue

Multiple Choice

Homeostasis mechanisms occurs when....

• the body needs to be regulated

• there is growth and development

• every year as we age

• when the seasons change

Multiple Choice

When you step out into the cold, your body shivers in order to keep its temperature at 98.6F. Which characteristic of life does this represent?

• All living things maintain homeostasis

• All living things use energy

• All living things grow

• All living things contain cells

Multiple Choice

Why do some cells look different than others?

• they utilize different DNA genes

• They have different DNA than other cells

• the organ makes the cells differently than the other organs do.

Multiple Choice

Help! we seemed to find a strange blob floating in the creek nearby and can't decide if it is living or not..... It appears to be able to move on its own, it began to grow over time. when we took samples, it appeared to be made up of mainly water. It is living or non-living based on the information given??

• living

• non-living

Multiple Choice

A camel has eyelashes that work to keep the dust and sand out of its eyes. Which characteristic of life does this represent?

• All living things have cells

• All living things grow

• All living things adapt to their environment

• All living things use energy

Multiple Choice

Which of the following is the second smallest level of organization?

• organ
• cell
• organism
• tissue

Multiple Choice

Organ systems are grouped according to_____

• the order that the cells are made

• their function in the body

• the size of the organs

• the names of the organs

Multiple Choice

Which statement describes ALL living things?

• 
  They have organ systems to carry out the processes of life.

• They are capable of making their own food.

• They must reproduce sexually.

• They are composed of one or more cells.

Multiple Choice

The following are all characteristics of life EXCEPT:

• eat food

• 
  reproduce

• respond stimuli

• made of cell(s)