Taylor is investigating if different types of shoes affect how high an athlete can jump. What is the independent variable.

Isacc is investigating how long it take his dog to react to different sounds. What is the independent variable?

Melissa is investigating how different types of music affect student heart rates. What is the controlled variable?

A student constructs several terrariums to grow plants. Each terrarium is exposed to a different amount of sunlight each day. In order to determine the ideal amount of sunlight, which of the following variables must be held constant?

A student hypothesizes that green algae will grow fastest when exposed to blue light. To test this hypothesis, the student should design an experiment with which independent variable?

Sandy is conducting an investigation to find out which food his dog likes best. Which is the dependent variable in his investigation?

You design an experiment to test the effects of temperature on bacterial growth. You use three bacteria cultures under three heat lamps at different temperatures. What is the dependent variables int his experiment?

two students wanted to find out which of their toy race cars would go the farthest down a ramp. Which of these should be held constant if they want a fair test of their cars?

In an experiment about growth, some snapdragon seeds were placed in dishes lined with moisture paper towels at different temperatures. Which of these is the independent variable in this experiment?

Decide if the scenario is quantitative or qualitative data: The flower is red with a yellow center.

Decide if the scenario is quantitative or qualitative data: My grade on the Science Test was a 93%.

Decide if the scenario is quantitative or qualitative data: Our Science class has 25 students.

Decide if the scenario is quantitative or qualitative data: The laptop is white with silver trim.

Decide if the scenario is quantitative or qualitative data: The candy melted in 3 minutes.

Decide if the scenario is quantitative or qualitative data: The substance feels rough.

Condensation is a phase change from a

Freezing is a phase change from a

Which phase of matter has NO definite shape or volume?

Matter is anything that has _________ and takes up space.

What two phase changes involve skipping the liquid phase?

In which phase of matter will you find the molecules tightly packed together?

In which state of matter are the molecules loosely packed and can flow against one another?