Science Safety & Tools
False! You should notify a teacher and ONLY teachers need to handle broken glass
solid, liquid, gas
A force is a _________.
push or a pull
True or false: Aluminum is magnetic
False! Only Cobalt, Nickel, and Iron are magnetic
When working with liquids, what lab safety equipment should you use?
Goggles
Ice is _______ when it goes from a solid to a liquid.
A. freezing B. condensing C. participating D. melting
D. melting
Sand, water, and salt is a mixture. What two ways do we separate them?
with a sieve (or filter) and evaporation
Which of the following is NOT an example of a force:
a. magnetism
b. mass
c. gravity
d. friction
b. mass
Which one of these forces is considered a no-contact force (meaning you don't need to touch it with anything for the force to occur)
1. magnetism
2. gravity
gravity!
What science tool do you measure liquids with?
The process of water droplets turning into water vapor is called _______.
condensation (or condensing)
Layla wanted to make a lemonde stand to earn some extra cash. She mixed lemon juice, sugar, and water together. She taste-tested it and it was way too sweet. Can she remove sugar from her lemonade to make it less sweet? Explain why or why not.
She cannot remove the sugar from the lemonade because it is a solution. The sugar has already dissolved into the water and lemon juice.
Jeremy is rolling a marble down a ramp he made himself. Every trial, he makes the ramp higher. What is a variable that does NOT change?
a. the distance the marble travels
b. the height of the ramp
c. the marble
C. the marble
True or False: Magnetism and gravity are the same thing because they are both forces
FALSE! They are completely different things. Gravity is a force that acts between any two objects with mass. ... Unlike gravity, which occurs between any objects, magnetism depends on specific properties of objects.
What tool do you measure an objects mass with? (grams)
A pan balance
Shauna placed a cup of water in a warm place. One week later, no water was left in the cup. What probably happened?
A. The liquid water changed to a gas.
B. The liquid water changed to a solid.
C. The water leaked out of the cup.
D. The water spilled from the cup.
A. The liquid water changed to a gas
List two examples of mixtures:
1._____________
2._____________
Possible answers: cereal, Chex Mix, pasta salad, trail mix, sand and water.. (answers may vary)
An unbalanced force
What unit do we measure force?
Newtons
List 3 science safety rules that we have discussed this year
examples: no horse playing, waft smells, tie back long hair, no open-toed shoes, wear goggles when working with liquids, wait for teachers instructions, read all directions
How can a liquid become a solid?
1. By something removing heat from it and slowing down the particles.
Camden stirs together oil and water for 1 minutes, and then lets it sit for 5 minutes. What will happen after 5 minutes. Will it be a mixture or a solution.
10. If two spheres of different masses, but the same size are dropped at the same time, they will hit the ground _________.
1. at the same time
2. at different times- the smaller mass hitting 1st
3. at different times- the bigger mass hitting 1st
1. at the same time
_____ is the amount of matter, or stuff, something has. _____ measures the gravitational pull of an object’s mass.
1. Mass
2. weight