Vocabularies
An electrical or mechanical device used for measuring temperature .
Thermometer
Change that affects only the shape, size, or form of a material.
Physical change
What is the chemical name of FePO3?
Iron Phosphate
daniel is testing how to keep something cold, what is the best way for him to test materials scientifically?
-touching a cup every 10 minutes
-measuring the temperature every 10 minutes
measuring the temperature
when you make a caramel apple you melt sugar to make caramel and stick the apple in the caramel what is the chemical reaction?
sugar turning to caramel
When something reacts with oxygen in the air in an explosive manner
Burning
Two observations made when metal reacts with acid.
bubbles (gas forms)
metal dissolves
temperature raises
What are the 2 observations made when Magnesium is burning?
1. Burns in bright white light
2. White ash/smoke is left behind
what is the first thing you do for a science experiment (investigation)?
ask a question
How you can make chemical change to a piece of wood?
Burn it
A point in temperature when a matter changes from vibrating to moving in a fixed volume
Melting point
What is force?
A push or a pull.
A way to test for carbon dioxide gas
Flows it to limewater, limewater becomes milky/cloudy
what is a hypothesis?
a statement that can be tested
which job is an example of a chemical change?
-Sewing a shirt
-baking bread
baking bread
Something that takes up space and volume
Matter
The measure of the amount of matter in an object.
mass
The process in which plants use sunlight, water, and carbon dioxide to produce its own food.
photosynthesis
What are the variables that should always kept the same during an experiment?
Control variables
This type of material does not allow electricity to flow through it.
Insulator
A name of a reaction between hydrochloric acid and sodium hydroxide
Neutralisation
The force of gravity exerted on a mass.
weight
A term to call a white solid that forms when two clear solutions react.
Precipitate
what is the last step to the scientific method?
Conclusion
What is the medium scientists use to grow bacteria?
Nutrient agar