An explanation based on evidence that is not directly observed.
What is inference?
is information about the natural world gathered through the senses and/or scientific instruments.
What is Observation?
Anything that takes up space and has mass
What is Matter?
Many physical and chemical changes occur in the world around us. Which of the following is an example of a chemical change?
a nail rusts
A tool used to measure the mass of an object is called
What is a balance?
To arrange in a specific order or group by categories based on similarities.
What is classify?
Nathan wants to know how tall the cactus plant in his yard will grow in one year. What kind of investigation should he conduct?
What is an observation with evidence of the plant height over time?
The form matter can take (solid, liquid, gas).
What is state of matter?
is a change of a matter in size, shape, or state that does not change the original matter into a new type of matter. No new substance is formed
What is physical change?
is the amount of space that an object or substance takes up?
What is Volume?
is a replica or description made to show how an object or system is made or how it works.
What is a model?
is a group in a scientific experiment that serves as a reference for comparisons to the experimental group, a group that is untreated by the factors being tested.
What is a Control Group?
Which of the objects can Jennifer classify as having magnetic attraction and a long, flat shape?
A. paper clip, key B. paper clip, nail C. nail, pencil, crayon D. paper clip, pencil, key
B. paper clip and nail
Boiling Water is an example of ?
What is physical change?
tool used to magnify something.
What is a Microscope?
measurements or observations collected and recorded in an experiment or investigation.
What is Data?
is a statement that tells what an investigation showed, based on observations and data.
What is a conclusion?
What physical property could the students use to identify that the liquid is vinegar?
What is volume?
Changes in odor, color, taste, mass
Gives off : smoke, light
Formation of bubbles (gives off gas)
What is Signs of a Chemical Change?
s the process of giving a number to something by using tools.
What is Measurements?
The study of the natural world is called
What is Science?
is a tool used to measure volume.
What is a Graduated Cylinder?
Darlene places a small rock into a graduated cylinder filled with water and the water level in the graduated cylinder rises from 20 milliliters to 27 milliliters.
Which is the best explanation of why the water level rose.
A. The water level rose because of the volume of the rock. The rock displaced 7 milliliters of water.
B. The water level rose because the water has more volume than the rock.
C. The water level rose because the rock has less mass than the water.
D. The water level rose because the water is more dense than the rock.
A
fresh leaves and those that are decaying and suggest what type of change is occurring.
What is Chemical Change?
An object that attracts iron and a few other materials.
What is Magnets?