Lab Safety
Why is it important to wear goggles during investigations with chemicals?
To protect your eyes from harmful splashes or reactions.
Name the three common states of matter.
Another name for sodium bicarbonate.
What is baking soda?
Matter cannot be __________ or __________.
What is created or destroyed?
What liquid is used in rocket fuel tests?
What is vinegar?
Give one example of safe behavior when working with chemicals.
Examples may include: Wearing goggles, measuring chemicals carefully, not touching chemicals with bare hands, not tasting/smelling substances directly.
Why does air fill an entire container, no matter its size
Gas particles spread out and move freely.
Color, texture, hardness = what type of property?
What is physical?
Ice melting = what kind of change?
What is physical?
What materials is needed to build the rocket?
What is two water bottles, tape, rocket nose cone, and rocket fins? ?
Why should scientists avoid randomly mixing chemicals?
Some mixtures can be dangerous; only safe combinations are allowed.
In the “Airbag Power” station, what evidence proved air is matter?
Inflating a bag with air lifted a textbook.
Iron rusting= physical or chemical?
What is chemical?
If salt is mixed with water, the mass stays the __________.
Same.
Which reaction makes the rocket fly: baking soda + vinegar or water + salt?
What is baking soda and vinegar?
Which place launches rockets for NASA—Kennedy Space Center or Wallops Flight Facility?
The Wallops Flight Facility.
A balloon gets heavier when filled with air. What does this show you about air?
Air has mass/weight.
Which chemical combination(s) are BEST for the rocket launch?
Sodium bicarbonate and acetic acid
Sodium hydrogen carbonate and acetic acid
In a closed system, gas from a reaction still has __________.
Measuring how high the rocket flew in the air is measuring its ___________?
What is altitude?
What do scientists use to prove which rocket fuel works best—opinions or evidence?
Evidence.
True or false:
Matter too small to see still exists.
True.
What tool do scientists use to show changes in data?
What are graphs.
Why do engineers test rockets more than once?
What is altitude?
To compare results and improve the design.