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Whales in the ocean hear sounds more quickly than goldfish in a lake. True or False?
True
Easier to hear sounds in winter than in summer. True or False?
False
Railway works hear the horn of an approaching train before they hear the vibrations it makes in the steel rails. True or False?
False
You hear sounds more quickly in gases than liquids. True or False?
False
It is possible to hear sounds through rocks. True or False?
True
Which phase of matter will change shape but NOT size ?
Liquid
You decide to help your family cook breakfast one weekend. Which of the following actions would be considered a chemical change?
Making scrambled eggs.
What is it called when something goes from a liquid to solid state?
Freezing
Scientist CJ’s favorite smell is apple pie. Last time he cooked apple pie he trapped the smell into a container. He felt selfish for keeping it all for himself, so he took the cap off to share with his friends. When he takes the cap off what will happen with the gas?
Which of the following is not an example of a physical change?
Burning Toast
The measure of how close and how heavy are the particles in an object is called its:
A. mass
B. weight
C. density
Density
A substance whose density is greater than 1 g/mL will:
A. float
B. be suspended
C. sink
Sink
Which BEST describes the meaning of mass of an object?
a. The amount of space an object or substance takes up
b. Mass divided by volume
c. The amount of matter in an object or substance
d. The weight of an object only in solid form and in zero gravity
Amount of matter in an object or substance
Which of the following BEST describes volume?
How much space an object takes up
Where an object is in space
How much an object weighs
The mass of an object compared to its weight
how much space an object takes up
1. What happens if you pour two liquids that have different densities in the same container?
A. they separate when you stop mixing them
B. the heavier liquid deposits itself on the bottom and the lighter liquid deposits itself on top
C. they combine into one liquid
D. Both A&B
A & B
they separate when you stop mixing them. The "heavier" liquid deposits itself on the bottom and the "lighter" liquid deposits itself on top. Molasses is most dense while alcohol is the least dense liquid.
1. The ________ make the food for the plant.
Roots
Stem
Leaves
Flowers
Leaves
1. The _______ of a plant produces seeds to make new plants.
Leaves
Flowers
2. Which part of a plant changes light, water, nutrients, and oxygen into food for the plant?
Leaves
Roots
Flowers
Flowers
Leaves
1. What is the scientific definition of a fruit?
A.The part of a plant that holds the seeds
B.The part of a plant that makes food
2. Plants need ________ from the soil.
A. minerals and dirt
B. rocks and water
C. water and minerals
1. The part of a plant that holds the seeds
2. water and minerals
1. All plants have flowers.
A. True
B. False
2. What does the flower do?
A. It makes food for the plant.
B. It takes water from the ground.
C. It makes seeds.
False
Makes Seeds
1. The _______ is like a straw. It moves the water and nutrients up through the plant. It supports the plant.
A. Stem
B. Leaves
C. Roots
2. What is a bud?
A. An undeveloped shoot
B. A fruit
C. A vegetable
1. Stem
2. An undeveloped shoot
The different trees that loses its leaves during the fall and grows new leaves each spring are called ____ trees
deciduous trees
Create the order of the fall colors of leaf that goes through before falling down. (in the order of On tree -> towards falling down)
A. Red, orange, Gold, Bright yellow and brown before falling to the ground
B. Gold, Orange, Bright yellow, red and brown before falling to the ground
C. Bright yellow, gold, orange, red and brown before falling to the ground
Bright yellow, gold, orange, red and brown before falling to the ground
----------- is the process trees (and plants) use to make their food.
Photosynthesis
________ in the leaves makes photosynthesis possible and makes leaves green.
Chlorophyll
1. Why leaves change colors ?
A. When it is cooler the chlorophyll in the leaves reacts with the cold air and produces food as different colors instead of green.
B. When it is cooler the chlorophyll in the leaves uses stored food instead of making new food. While the food is used, the leaves change colors.
B. When it is cooler the chlorophyll in the leaves uses stored food instead of making new food. While the food is used, the leaves change colors.