A scientific instrument that uses a lense to make objects appear bigger
What is a microscope
100
The three phases of matter are
What are solid, liquid, gas
100
The BTB test is used to determine if a substance is
What is an acid or a base
100
Scientists use microscopes because
What is they make objects look bigger
100
A material that is soluble will....
What is dissolve in water
200
Something that has mass and takes up space
What is matter
200
When a solid melts it becomes a
What is liquid
200
A substance that causes BTB to turn yellow
What is an acid
200
Which of the following is an observation?
A- I think the material is poison
B- I think the material is salt
C- The material is white
What is C- The material is white
200
An example of matter would be:
A-light
B-sound
C-heat
D-water
What is water
300
A chemical called an indicator that can be used to tell the difference between and acid and a base
What is BTB
300
When a liquid evaporates it becomes a
What is gas
300
A substance that causes BTB to stay blue
What is a base
300
Why should you NEVER taste an unknown material?
What is You don't know what the material is and if it is harmful.
300
You tell your teacher that a material interacts with acid. You know this because when an acid was placed on the material, it
What is bubbled
400
The directions followed in an experiment
What is the procedure
400
When a liquid freezes it becomes a
What is solid
400
In our experiments, baking soda made the BTB stay blue. This means baking soda is a
What is a base
400
Why do scientists wear goggles?
What is to protect their eyes from unknown materials
400
When iodine is placed on a material, it changes from a brown color to a blue-black. This means that the material
What is contains starch
500
A statement about something that will happen in the future
What is a prediction
500
When a liquid becomes a gas it
What is evaporates
500
In our experiments, sugar caused the BTB to turn yellow. This means sugar is
What is an acid
500
Name one safety rule that should be followed when using matches.
What is Make sure you have permission from your teacher; Roll up your sleeves and tie back long hair; Strike match away from you; When match has cooled, place it in the match jar
500
The qualities used to describe objects such as size, color, odor, texture, shape, and weight are its