Unit 1: Equipment, Observation/Inferences, Variables, C.O.L

instrument for measuring precise fluid volumes

• graduated cylinder

• beaker

• Erlenmeyer Flask

a narrow-necked glass container, typically conical or spherical, used in a laboratory to hold reagents or samples

• Beaker

• graduated cylinder

• Erlenmeyer Flask

instrument used to transfer liquids or fine-grained materials into containers with small openings. Also used for filtration

• pipette

• funnel

• beaker

slender tube attached to a bulb, used for transferring or measuring out small quantities of liquid, especially in a laboratory

• pipette

• graduated cylinder

• beaker

cylindrical glass tube used for holding liquids or heating them over a Bunsen burner's flame

• graduated cylinder

• test tube

• beaker

What is used to measure (but not precise), heat, and mix large amounts of liquids?

• beaker

• flask

• test tube

• graduated cylinder

What is observation?

• Information gathered using the 5 senses

• A question based on past experience

• A prediction

• Information that only comes from measurements

What is an inference? 

• A random guess

• A prediction about our observations

• The same as an observation

• Deciding if an observation has numbers

Which of the following statements is an inference about the picture

• The vase is broken.

• The girl is wearing a red shirt

• The girl broke the vase

• The girl has blonde hair.

Which of the following is an observation about the man in this picture:

• The man hates his purple shirt.
• The man has a purple shirt.
• The man is having a bad day.
• This man is upset because he's hungry