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Unit 1 Lesson 1 Science

Last updated over 5 years ago
11 questions
1

DO NOW: Looking at the picture below. Tell me three unsafe things that are happening in this picture and why are they unsafe?

I see some people are ______________. This is unsafe because __________.

Watch the video below:
1

When working with materials that might fly into the air and hurt someone's eye you should wear

1

If you get hurt or injured in any way in the lab, you should

1

Before doing experiments involving a heat source, you should know the location of the

1

If you think you may have gotten a chemical in your eye, you should

1

When working with a flame or a heat source, you should

1

If a beaker of water falls to the floor and breaks, you should

Types of Data
Scientists collect two different types of data: qualitative data and quantitative data.

Qualitative Data: Qualitative data are descriptions in words of what is being observed. They are based
on some quality of an observation, such as color, odor, or texture.

Quantitative Data: Quantitative data are numeric measurements. The data are objective- they are the
same no matter who measures them. They include measurements such as mass, volume, temperature,
distance, concentration, time, or frequency.
Example
Suppose a marine biologist observes the behavior and activities of dolphins. She identifies different
dolphins within the group and observes them every day for a month. She records detailed observations
about their behaviors. Some of her observations are qualitative data and some are quantitative data.

Qualitative data examples:
• Dolphin colors range from gray to white.
• Dolphins in a pod engage in play behavior.
• Dolphins have smooth skin.

Quantitative data examples:
• There are nine dolphins in this pod.
• Dolphins eat the equivalent of 4-5% of their body mass each day.
• The sonar frequency most often used by the dolphins is around 100kHz.

Notice the qualitative data are descriptions and the quantitative data are objective, numerical
measurements; a quantity.
1

Decide whether this data is qualitative or quantitative.

There were four dogs in the group.

1

Decide whether this data is qualitative or quantitative.

The rock sample was reddish brownish.

1

Decide whether this data is qualitative or quantitative.

The dogs were small.

1

Decide whether this data is qualitative or quantitative.

The first plant specimen had 3 more leaves than the second specimen.

Scientific Lab Tools Review Using Quizlet:
1) Go to the website: https://quizlet.com/92307726/flashcards
2) Complete one (1) of the Study activities.
3) Then play one of the games under Play.
Scientific Method Review Using Quizlet:
1) Go to the website: https://quizlet.com/310210252/scientific-method-8th-grade-flash-cards/
2) Complete one (1) of the Study activities.
3) Then play one of the games under Play.