Sem 1 Chemistry Review

Which of the following is an observation about this picture?

• The boy has fallen off his bike.
• The boy is in a lot of pain.
• The boy has injuries to his knees
• The boy learned his lesson about wheelies

Which of the following statements is an inference about the picture

• The vase is broken.
• The girls' bow is blue and purple.
• The girl broke the vase.
• The girl has blonde hair.

Tags

CCSS.RI.11-12.2

CCSS.RI.8.1

CCSS.RI.9-10.1

CCSS.RL.11-12.1

CCSS.RL.9-10.1

Scenario: you walk into the science classroom and see an unfamiliar adult at the front of the room. You also see that Ms. Vanaselja is not in the room. You wonder where she could be.

Which one(s) are observations?

• You walk into science.

• You see an unfamiliar adult.

• You wonder where Ms. Vanaselja could be.

• None of these are observations

Which of the following is NOT an inference 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

Observations like measurements are ____________ observations

• quantitiative
• qualitative
• operational
• scientific

Tags

NGSS.MS-PS3-1

Observations like the color or texture of an object are ________________ observations.

• quantitative
• qualitative
• operational
• scientific

In the scientific process, which comes first?

• Observation: using your senses to gather information
• Inference: explain data based on prior knowledge
• Prediction: anticipate a future event
• Hypothesis: a testable explanation for a set of data

Pure substances are

• elements and compounds

• heterogeneous mixtures

• solutions

• homogeneous mixtures

Gold, silver, zinc, and copper are

• elements

• mixtures

• solutions

• compounds

Tags

NGSS.MS-PS1-1

salt and baking soda are

• compounds

• homogeneous mixtures

• solutions

• heterogeneous mixtures